Cathrin, S.; Wikandaru, R.; Listiana, I.; Ratnasari, D.; Warsidah, W.; Widyoningsih, W.; Arif, M. B.; Indah, A. V. Harmonization of the Education Curriculum at Pesantren Al Falah Gorontalo: An Educational Philosophy Study. KSS 2021, 6, 436–450.