Kifah, Adha Sabila, Agus Sutanto, Hening Widowati, and Muhfahroyin Muhfahroyin. “Organic Fertilizer Application of Shrimp Pond Waste Sediment For Growth And Productivity (Lactuca Sativa Crispa L )”. Jurnal Penelitian Pertanian Terapan 20, no. 2 (October 27, 2020): 170-176. Accessed January 16, 2021. https://jurnal.polinela.ac.id/index.php/JPPT/article/view/1677.