Mathar, Muh. Quraisy, and Ayu Trysnawati. “Trends in Library Science Research Topics During the Period 2016-2019”. Khizanah Al-Hikmah : Jurnal Ilmu Perpustakaan, Informasi, Dan Kearsipan, vol. 9, no. 1, June 2021, pp. 76-80, doi:10.24252/v9i1a9.