Gaya APA

Wijaya, T. et al (1988). peat deposit at teluk keramat west kalimantan province . Bandung: sub direktorat of coal and peat exploration.

Gaya MLA

Wijaya, Truman. et al. "peat deposit at teluk keramat west kalimantan province". Bandung: sub direktorat of coal and peat exploration, 1988. Bukan Logam.