Gaya APA

SURATMAN, . (2009). Two new species of morinda (rubiaceae) from Sumatra and Borneo . : Universitas Sebelas Maret.

Gaya MLA

SURATMAN, . "Two new species of morinda (rubiaceae) from Sumatra and Borneo". : Universitas Sebelas Maret, 2009. Lap. Penelt. Dosen.