Ahmad Hudaiby Galih Kusumah, Universitas Pendidikan Indonesia, 
Arun Antonyraj, Vels Institute of Science Technology and Advanced Studies, India,
Atang Sabur Safari, Politeknik Pariwisata NHI Bandung
Emmanuel Gamor, Koforidua Technical University, Ghana
Jing Fu, Chengdu University, China
Mohamed Taha Ahmed Abdelmawgoud, Minia University, Egypt,
Michael Murimi, Maseno University, Kenya
Noelah Mae Dimayuga Borbon, Lyceum of the Philippines University, Philippines
Nurul Sukma Lestari, Universitas Bina Nusantara, Indonesia
Putu Diah Sastri Pitanatri, Politeknik Pariwisata Bali, Indonesia
Ridwan Iskandar Sudayat, Politeknik Pariwisata NHI Bandung, Indonesia
Setiawan Priatmoko, Hungarian University of Agriculture and Life Sciences (MATE), Hungary
Tomy Andrianto, Politeknik Negeri Bandung,
Teddy Chandra, Politeknik Pariwisata NHI Bandung
Thawit Witsathit Somrak, Bangkok University
Trias Septyoari Putranto, Universitas Bina Nusantara,
Tristy Firlyanie Luthfi, Politeknik Pariwisata NHI Bandung
Wanti Arumwanti, Politeknik Pariwisata NHI Bandung
Yoksamon Jeaheng, Suratthani Rajabhat University, Thailand