Gaya APA

Hayami, Y., Hafid, A. (1978). Some observations on the changes in rice harvesting systems in Java . Bogor: Survey Agro Ekonomi, Studi Dinamika Pedesaan.

Gaya MLA

Hayami, Yujiro., Hafid, Anwar. "Some observations on the changes in rice harvesting systems in Java". Bogor: Survey Agro Ekonomi, Studi Dinamika Pedesaan, 1978. Text.