edited by Lai Ah Eng, Francis L. Collins and Brenda S.A. Yeoh
Institute of South East Asia Studies, 2013
eBooks
editor, J.D. Paerson
Harvester Press, 1979
Buku Referensi
Published for the Asian Develoment Bank by Oxford University Press, 1995
Buku Teks
Fakultas ekonomi, 2012
Majalah, Jurnal, Buletin
O`Byrne, Peter
Orchid society of south east Asia, 2001
Buku Teks