R. A. GUMILAR, N. WIJAYANTO, and A. S. WULANDARI, “Effect of Azadirachta excelsa and Melia azedarach extracts on soybean germination”, Nusantara Biosci, vol. 9, no. 4, pp. 346–351, Nov. 2017, doi: 10.13057/nusbiosci/n090402.