Haridjaja, Oteng, Yayat Hidayat, and Lina Siti Maryamah. “Pengaruh Bobot Isi Tanah Terhadap Sifat Fisik Tanah Dan Perkecambahan Benih Kacang Tanah Dan Kedelai (Effect Of Soil Bulk Density On Soil Physical Properties And Seed Germinations Of Peanut And Soybean)”. Jurnal Ilmu Pertanian Indonesia 15, no. 3 (March 14, 2013): 147-152. Accessed September 26, 2020. http://jurnal.ipb.ac.id/index.php/JIPI/article/view/6462.