Puspitoningrum E. Analisis Permasalahan pada Kebutuhan Belajar Keterampilan Menulis Makalah Mahasiswa Melalui Model Jigsaw di Era Digital (Kajian Awal Lesson Study): Analysis of Problems in the Learning Needs of Writing Paper Skills for Students Through the Jigsaw Model in the Digital Era (Preliminary Study of Lesson Study). Jubasan. 2020;4(1):1-11. doi:10.29407/jbsp.v4i1.17659