Gaya APA
Vossen, H, V, D., Wessel, M. (2000).
Plant Resources of South-East Asia 16 Stimulants .
Bogor:
Backhuys Publishers.
Gaya MLA
Vossen, H.A.M., Van, Der., Wessel, M..
"Plant Resources of South-East Asia 16 Stimulants".
Bogor:
Backhuys Publishers,
2000.
HandBook.