Jakarta : KITLV (Royal Netherlands Institute of Southeast Asia and Caribbean Studies)
Majalah, Jurnal, Buletin
O`Byrne, Peter, author
Orchid society of south east Asia, 2001
Buku Teks
edited by Denis Dwyer
Longman, 1990
Buku Teks
edited by Takashi Shiraishi, Jiro Okamoto
Institute of South East Asia Studies, 2012
eBooks
Minda Masagi Press, 2015
Majalah, Jurnal, Buletin