Kustiawan, W., and N. M. Jannah. “Teori Pengurangan Ketidakpastian”. Maktabatun: Jurnal Perpustakaan Dan Informasi, Vol. 1, no. 2, Oct. 2021, pp. 98-00, https://ummaspul.e-journal.id/RMH/article/view/5342.