Gaya APA
Sumarna, Y.
(2014).
Budi Daya & Bisnis Gaharu / Yana Sumarna
.
Jakarta ::
Penebar Swadaya,.
Gaya MLA
Sumarna, Yana.
"Budi Daya & Bisnis Gaharu / Yana Sumarna".
Jakarta ::
Penebar Swadaya,,
2014.
Text.