APA (7th ed.) Citation

Medan, P. P. P. (1990). Buletin Perkebunan Vol.21 No.1-4 April Thn.1990. Pusat Penelitian Pengembangan Tanaman In.

Chicago Style (17th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan Vol.21 No.1-4 April Thn.1990. Pusat Penelitian Pengembangan Tanaman In, 1990.

MLA (8th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan Vol.21 No.1-4 April Thn.1990. Pusat Penelitian Pengembangan Tanaman In, 1990.

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