N. Aliyatil Fachiroh and A. Wachid, “The Effect of Growth Regulatory Substances (ZPT) and Liquid Organic Fertilizer (POC) Conch Mas (Pamocea canaliculata L.) on Growth and Production of Green Mustard (Brassica juncea L)”, nabatia, vol. 4, no. 2, pp. 101-108, Dec. 2016.