RIVAI, R. R., WARDANI, F. F., & ZULKARNAEN, R. N. (2017). The effect of NPK fertilizer and planting media on plant growth and saponin content of the medicinal plant Anchomanes difformis. Nusantara Bioscience, 9(2), 141-145. https://doi.org/10.13057/nusbiosci/n090206