, B. P. P. M. (1975). STATISTIK SAWIT 1974-1975. BPP Medan.
Chicago Style (17th ed.) Citation, Balai Penelitian Perkebunan Medan. STATISTIK SAWIT 1974-1975. BPP Medan, 1975.
MLA (8th ed.) Citation, Balai Penelitian Perkebunan Medan. STATISTIK SAWIT 1974-1975. BPP Medan, 1975.
Warning: These citations may not always be 100% accurate.