Santika, N. A. and Indriani, V. (2025) “Optimization of vermicompost utilization of soil worms (Lumbricus rubellus) on the morphology green spinach (Amaranthus sp.)”, Jurnal Online Pertanian Tropik, 13(2), pp. 93–102. doi: 10.32734/jopt.v13i2.24549.