Hayati, Rita, et al. “Optimization of Growth and Yield of Several Varieties of Green Beans (Vigna Radiata L) Using Solid Oil Palm Waste on Red Yellow Podzolic Soil in Bengkulu”. Jurnal Penelitian Pendidikan IPA, vol. 11, no. 6, June 2025, pp. 42-51, doi:10.29303/jppipa.v11i6.11559.