Salim, Abdurrahman, et al. “Optimization Of Manage Fertilizer Media And Liquid Organic Fertilizer Of Lamtoro Leaves Leaves On Vanilla Seed Plant”. Jurnal Penelitian Pertanian Terapan, vol. 23, no. 1, Mar. 2023, pp. 47-54, doi:10.25181/jppt.v23i1.2306.