Dewi Zakiyatus Sholihah, Naniek Sulistya Wardani and Aris Kukuh Prasetyo (2022) “The Development of e-Book Based on Problem and Project Based Learning Assisted by Book Creators”, JTP - Jurnal Teknologi Pendidikan, 24(2), pp. 258-270. doi: 10.21009/jtp.v24i2.28851.