Gaya APA

Ishak, H. (2019). Kesehatan Ekosistem (Cet. 1). Sleman yogyakarta: Gosyen Publishing.

Gaya MLA

Ishak, Hasanuddin. "Kesehatan Ekosistem". Cet. 1 Sleman yogyakarta: Gosyen Publishing, 2019. TEXT BOOK.