Wahyu W, M. Rambitan V, Daniel D. A REQUIREMENTS ANALYSIS OF PROBLEM UNDERSTANDING OF BIOLOGICAL TEACHERS RELATED TO DEVELOPMENT OF CHARACTER EDUCATION BASED LEARNING. IJER [Internet]. 2020Dec.8 [cited 2025May4];7(02):44-0. Available from: http://103.8.12.212:33180/unj/index.php/ijer/article/view/21703