E.L.Tobing, S. (1979). RISALAH PENELITIAN: PENGUJIAN PUPUK MAJEMUK PADA TANAMAN KELAPA SAWIT. Marihat Research Station.
Chicago Style (17th ed.) CitationE.L.Tobing, Suwandi. RISALAH PENELITIAN: PENGUJIAN PUPUK MAJEMUK PADA TANAMAN KELAPA SAWIT. Marihat Research Station, 1979.
MLA (8th ed.) CitationE.L.Tobing, Suwandi. RISALAH PENELITIAN: PENGUJIAN PUPUK MAJEMUK PADA TANAMAN KELAPA SAWIT. Marihat Research Station, 1979.
Warning: These citations may not always be 100% accurate.