Seoul : Kim Woo Keum
Majalah, Jurnal, Buletin
Iran : Eco cultural institute
Majalah, Jurnal, Buletin
Nederland : Stichting Ambassador College
Majalah, Jurnal, Buletin
Surabaya : Citra Jaya Mukti
Majalah, Jurnal, Buletin
Institute of Southeast Asian Studies, 1992
Majalah, Jurnal, Buletin