APA (7th ed.) Citation

Harahap, I. S., & Tjahjono, B. (1989). Pengendalian hama penyakit padi. Penebar Swadaya.

Chicago Style (17th ed.) Citation

Harahap, Idham Sakti, and Budi Tjahjono. Pengendalian Hama Penyakit Padi. Penebar Swadaya, 1989.

MLA (8th ed.) Citation

Harahap, Idham Sakti, and Budi Tjahjono. Pengendalian Hama Penyakit Padi. Penebar Swadaya, 1989.

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