Triyani L, Tindangen M, Akhmad A. THE PROBLEM OF TEACHERS DEVELOPING SHEET WORK OF STUDENTS (LKPD) HIGH SCHOOL BIOLOGY BASED SCIENTIFIC APPROACH . IJER [Internet]. 2020Dec.8 [cited 2025May4];7(02):27-2. Available from: http://103.8.12.212:33180/unj/index.php/ijer/article/view/21700