[1]
P. Hadi, R. R. Noviana, Suwardi, and A. M. Widodo, “Interactive Effects of Fertilizer Types and Shading Levels on ‎Growth, Yield, and Piperine Content of Piper Retrofractum Under ‎Tropical Agroecosystems”, isej, vol. 7, no. 2, pp. 77-92, May 2026.