1.
Kusuma IPI, Mahayanti NWS, Adnyani LDS, Budiarta LGR. Incorporating E-portfolio with flipped classrooms: An in-depth analysis of students’ speaking performance and learning engagement. JALTCALL [Internet]. 2021 Aug. 31 [cited 2026 Sep. 26];17(2):93-111. Available from: https://www.castledown.com/journals/jaltcall/article/view/jaltcall.v17n2.378