RISPARYANTO, Anton. Model–Model Temu Kembali Informasi (Information Retrieval). UNILIB : Jurnal Perpustakaan, [S.l.], p. 49-87, may 2019. ISSN 2715-274x. Available at: <https://journal.uii.ac.id/unilib/article/view/12642>. Date accessed: 29 sep. 2020.