Asiah Wati et al. 2014. Effect of Fertilizer Petroganik and Liquid Organic Fertilizer on Growth DI Grow Green Tangerines Citrus Seed Borneo Prima (C. reticulata Blanco) Origin Grafting: Pengaruh Pemberian Pupuk Petroganik dan Pupuk Organik Cair D.I Grow Green Terhadap Pertumbuhan Bibit Jeruk Keprok Borneo Prima (C. reticulata Blanco) Asal Okulasi. Agrifarm: Jurnal Ilmu Pertanian. 3, 1 (Jul. 2014), 14–18.