​H. Ahmed, Sulaimani, Iraq

S. Al-Hakkak, Najaf, Iraq

G. Alsfasser, Rostock, Germany

F. C. Campanile, Civita Castellana, Italy

O. P. Choudhary, Punjab, India

D. Chowdhury, Manchester, UK

A. Coppola, Rome, Italy​​

A. Hasan, Cairo, Egypt

A. Jha, Delhi, India

K. Kopeva, Tomsk, Russia​

M. Mitchell, New York, USA

​R. Moshref, Jeddah, Saudi Arabia

E. Ntouvali, Athens, Greece

M. Oley, Manado, Indonesia

C. Paasch, Brandenburg, Germany

R. Rosyidi, Mataram, Indonesia

P. Schemmer, Graz, Austria

C. Sohrabi, London, UK

D. A. Syahputra, Aceh, Indonesia

N. Tenreiro, Vila Real, Portugal

K. Yap, Melbourne, Australia