Hidayat, Umar, dan Noralia Purwa Yunita. “Penentuan Kadar Gula Reduksi Dan Kadar Protein Secara Spektrofotometri, Serta Uji Organoleptik Produk Nata De Leri Hasil Optimalisasi Asam Asetat Glasial”. Jurnal Penelitian Inovatif 2, no. 2 (Agustus 23, 2022): 355–362. Diakses September 4, 2025. https://jurnal-id.com/index.php/jupin/article/view/76.