Gaya APA

Centre, V, S, T. (1986). Erosi & Pengawetan Tanah (II) (Soil Erosion and Conservation) . : Volcanic SABO Technical Centre.

Gaya MLA

Centre, Volcanic, SABO, Technical. "Erosi & Pengawetan Tanah (II) (Soil Erosion and Conservation)". : Volcanic SABO Technical Centre, 1986. Text.