arsyad, rahmat, et al. “PENERAPAN LEMBAR KERJA SISWA (LKS) MELALUI STRATEGI PEMBELAJARAN BERBASIS MASALAH PADA MATA PELAJARAN MATEMATIKA: IMPLEMENTATION OF STUDENT WORK SHEET (LKS) THROUGH PROBLEM-BASED LEARNING STRATEGIES IN MATHEMATICS COURSES”. KAMBIK: Journal of Mathematics Education, vol. 1, no. 1, May 2023, pp. 50-57, https://ejournal.um-sorong.ac.id/index.php/jme/article/view/2457.