Asrijal, A., Sapareng, S., Upe, A., Akmal, A., & Arzan AR, T. S. (2023). Testing of Plant Growth Regulator and Organic Fertilizers on Black Rice Plants. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), 12(2), 484–494. https://doi.org/10.23960/jtep-l.v12i2.484-494