Marpaung, M., L. Neneng, and A. Akhmadi. “The Effect of Organic Biofertilizer on The Growth of Mustard Greens (Brassica Rapa Var. Parachinensis L) in Peat Soils As a Support for Practicum Material for Plant Growth and Development in Grade XII High School”. GAMAPROIONUKLEUS, vol. 2, no. 1, May 2021, pp. 33-44, doi:10.37304/jpmipa.v2i1.3688.