EasyChair Preprint № 2115 Eforts to Utilize Waste Raw Materials in the Food Industry to Become a Business Crafts of Hands to Improve Citizens Economy Muhammad Irfan, David Agus Prastiyo and Diah Sarasanty EasyChair preprints are intended for rapid dissemination of research results and are integrated with the rest of EasyChair. December 8, 2019