Puji Astutik Y, Hartono R, Saleh M. The Needs Analysis in Developing An English E-Book of Berau’s and Paser’s Folklores by Using Flipbook Maker Application for Extensive Reading Classes of University Students: Lecturers’ Voice. ISET [Internet]. 2022 Oct. 15 [cited 2026 Apr. 7];8(1):40-8. Available from: https://proceedings.unnes.ac.id/ISET/article/view/1719