APA (7th ed.) Citation

Purba, P. J. (2005). Pengelolaan lingkungan sosial. Yayasan Obor Indonesia.

Chicago Style (17th ed.) Citation

Purba, Penyunting: Johny. Pengelolaan Lingkungan Sosial. Yayasan Obor Indonesia, 2005.

MLA (8th ed.) Citation

Purba, Penyunting: Johny. Pengelolaan Lingkungan Sosial. Yayasan Obor Indonesia, 2005.

Warning: These citations may not always be 100% accurate.