“CHARACTERIZATION OF THERMOSTABLE BETA-1,4-GALACTANASE AND ITS APPLICATION IN HYDROLYSIS OF PECTIN FROM SWEET POTATO (Ipomoea batatas (L.) Lam) PEELS ” (2021) Jurnal Teknologi, 83(5), pp. 57–65. doi:10.11113/jurnalteknologi.v83.17198.