Stamatios Papadakis, University of Crete, Greece

Paola Magnano, Kore University Enna, Italia

Okwor Rosaline Ngozi, University of Nigeria, Nigeria

Hutkemri Zulnardi, University of Malaya, Malaysia

Lucky Hikmat Maulana, Universitas Djuanda, Indonesia

Hirofumi Ando, Khon Ken University, Thailand

Bevaola Kusumasari, Universitas Gadjah Mada, Indonesia

Indri Dwi Apriliyanti, Universitas Gadjah Mada, Indonesia

Fermina Anuddin, MSU-Sulu College of Education, Philippines

Robertus Suraji, Universitas Bhayangkara Jaya Raya, Jakarta, Indonesia

Rizabuana Ismail, Universitas Sumatera Utara, Medan, Indonesia