Amborowati , C. and Miana Sari Tinambunan 2024. Production of Pectin from Sweet Orange Peel (Citrus sinensis) with Different Volume of HCl. INDONESIAN JOURNAL OF CHEMICAL RESEARCH. 9, 2 (Dec. 2024). DOI:https://doi.org/10.20885/ijcr.vol9.iss2.art12.