[1]
D. Irawan, T. Nugrahini, and Mahdalena, “Effect of Fertilizer Manure on Growth Swallow Seed Varieties Some Rubber (Hevea brasiliensis Muell Arg): Pengaruh Pemberian Pupuk Kotoran Burung Walet Terhadap Pertumbuhan Beberapa Varietas Bibit Karet (Hevea brasiliensis Muell Arg”, agri. j. ilmu. pertan., vol. 2, no. 1, pp. 7–10, Jul. 2013.