Interdisciplinary Behavior and Social Sciences Proceedings of the 3rd International Congress on Interdisciplinary Behavior and Social Science 2014 (ICIBSoS 2014), 1–2 November 2014, Bali, Indonesia. Lumban Gaol, Ford Innbundet / 2015 / Engelsk
Role of Service in the Tourism & Hospitality Industry Proceedings of the Annual International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality 2014 (SERVE 2014), Gran Melia, Jakarta, Indonesia, 23-24 August 2014 Lumban Gaol, Ford Innbundet / 2015 / Engelsk
Managing Service, Education and Knowledge Management in the Knowledge Economic Era Proceedings of the Annual International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality 2016 (SERVE 2016), 8-9 October 2016 & 20-21 October 2016, Jakarta, Indonesia & Vladimir State University, Vladimir, Russia Lumban Gaol, Ford Innbundet / 2017 / Engelsk
Issues and Trends in Interdisciplinary Behavior and Social Science Proceedings of the 6th International Congress on Interdisciplinary Behavior and Social Sciences (ICIBSoS 2017), July 22-23, 2017, Bali, Indonesia Lumban Gaol, Ford Innbundet / 2018 / Engelsk
Financial and Economic Tools Used in the World Hospitality Industry Proceedings of the 5th International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality 2017 (SERVE 2017), 21-22 October 2017 & 30 November 2017, Bali, Indonesia & Moscow, Russia Lumban Gaol, Ford Innbundet / 2018 / Engelsk
Management and Technology in Knowledge, Service, Tourism & Hospitality Lumban Gaol, Ford Innbundet / 2014 / Engelsk
Social Sciences Empowered Proceedings of the 7th International Congress on Interdisciplinary Behavior and Social Sciences 2018 (ICIBSoS 2018) Lumban Gaol, Ford Innbundet / 2020 / Engelsk
Social Sciences Empowered Proceedings of the 7th International Congress on Interdisciplinary Behavior and Social Sciences 2018 (ICIBSoS 2018) Lumban Gaol, Ford Heftet / 2021 / Engelsk
Inclusive Development of Society Proceedings of the 6th International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality (SERVE 2018) Lumban Gaol, Ford Heftet / 2022 / Engelsk
Inclusive Development of Society Proceedings of the 6th International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality (SERVE 2018) Lumban Gaol, Ford Innbundet / 2020 / Engelsk
Social Sciences and Interdisciplinary Behavior The 4th International Congress on Interdisciplinary Behavior and Social Science (ICIBSoS 2015), Kazan Federal University, Kazan, Russia, 22-23 October 2015 & Arya Duta hotel, Jakarta, Indonesia, 07–08 November 2015 Lumban Gaol, Ford Innbundet / 2016 / Engelsk
Recent Trends in Social and Behaviour Sciences Proceedings of the International Congress on Interdisciplinary Behaviour and Social Sciences 2013 Lumban Gaol, Ford Innbundet / 2014 / Engelsk
Knowledge, Service, Tourism & Hospitality Proceedings of the Annual International Conference on Management and Technology in Knowledge, Service, Tourism & Hospitality 2015 (SERVE 2015), Bandung, Indonesia, 1-2 August 2015 Lumban Gaol, Ford Innbundet / 2016 / Engelsk
Trends and Issues in Interdisciplinary Behavior and Social Science Proceedings of the 5th International Congress on Interdisciplinary Behavior and Social Science (ICIBSoS 2016), 5-6 November 2016, Jogjakarta, Indonesia Lumban Gaol, Ford Innbundet / 2017 / Engelsk