Cahyanti, D. ., and I. . Permana. “COMPARISON OF BOOK SHOPPING PATTERNS BEFORE AND DURING THE COVID-19 PANDEMIC USING THE FP-GROWTH ALGORITHM AT ZANAFA BOOKSTORES”. Jurnal Teknik Informatika (Jutif), vol. 3, no. 2, Apr. 2022, pp. 381-6, doi:10.20884/1.jutif.2022.3.2.211.