Sibak, H A. “?EFFECT OF AMMONIUM SULFATE-SULFUR MIXTURE ON THE DIFFUSIVITY AND INDEX OF ACTIVITY OF AMMONIUM SULFATE”. Biological Sciences - PJSIR 41, no. 3 (September 13, 2021): 113–115. Accessed November 25, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/2247.