D. R. Isnainy, P. Asnur, M. R. A. Istiqlal, and U. Kalsum, “The Application of Liquid Organic Fertilizer Increasing the Productivity of Pakchoy Plants (Brassica rapa L.) in Soil with Low Nutrient Content”, JBT, vol. 25, no. 2, pp. 2029–2039, May 2025.