Medan, P. P. P. (1992). Buletin Perkebunan 1992 No 1-3. Pusat Penelitian Perkebunan (Rispa) Medan.
Chicago Style (17th ed.) CitationMedan, Pusat Penelitian Perkebunan. Buletin Perkebunan 1992 No 1-3. Pusat Penelitian Perkebunan (Rispa) Medan, 1992.
MLA (8th ed.) CitationMedan, Pusat Penelitian Perkebunan. Buletin Perkebunan 1992 No 1-3. Pusat Penelitian Perkebunan (Rispa) Medan, 1992.
Warning: These citations may not always be 100% accurate.