Dewi Zakiyatus Sholihah, Naniek Sulistya Wardani, Aris Kukuh Prasetyo. The Development of e-Book Based on Problem and Project Based Learning Assisted by Book Creators. JTP [Internet]. 2022 Aug. 28 [cited 2024 Nov. 2];24(2):258-70. Available from: https://journal.unj.ac.id/unj/index.php/jtp/article/view/28851