Ruth Ramayani Pasaribu, Erna Frida, and Susilawati. “ANALYSIS AND CHARACTERIZATION OF SILICA OF PALM STRACH WASTE (ARENGA PINNATA) WITH COPRECIPITATION METHOD”. Multidiciplinary Output Research For Actual and International Issue (MORFAI) 6, no. 4 (June 18, 2026): 6433–6437. Accessed June 18, 2026. https://radjapublika.com/index.php/MORFAI/article/view/5936.