Hadawiyanti Sinaga, Uswatun Hasanah, Afrizal Rambe, Yudha Pratama Nasution, Khoiriyah Syaharani Ritonga. PRESERVATION CONSERVATION EFFORTS OF LIBRARIANS TO MAINTAIN THE COLLECTION OF LIBRARY MATERIALS AT MTs AL WASHLIYAH KOLAM SCHOOL. j.Accounting [Internet]. 2024 Jun. 24 [cited 2024 Oct. 14];1(2):59-67. Available from: https://jurnal.asrypersadaquality.com/index.php/accounting/article/view/267