Jawad, Muhammad Abdus Salam, Restu Hikmah Ayu Murti, and Praditya Sigit Ardisty Sitogasa. “Community Empowerment: Used Cooking Oil Recycle to Produce Handwash Soap As a Commercial Souvenir Product in Surakarta”. abdimesin 1, no. 2 (October 28, 2021): 27–32. Accessed December 4, 2024. https://rekrutmen.upnjatim.ac.id/index.php/abdimesin/article/view/13.