Sari YW, Attar ZR, Widyarani W. EGGSHELL CALCIUM NANOPARTICLES: A SUSTAINABLE APPROACH TO BOOST BIOGAS PRODUCTION FROM TOFU LIQUID WASTE. IPR [Internet]. 2024Aug.15 [cited 2024Oct.18];7(3):414-28. Available from: https://ipr.unram.ac.id/index.php/ipr/article/view/350