Gaya APA

Fruhwald, A. et al (1992). Utilization of Coconut Timber . Jerman: GTZ Jerman & BPPT RI.

Gaya MLA

Fruhwald, Amo. et al. "Utilization of Coconut Timber". Jerman: GTZ Jerman & BPPT RI, 1992. Text.