Astindari, Tri.
" PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN MATEMATIKA KELAS X SMKN 2 SITUBONDO" <em>Jurnal IKA PGSD (Ikatan Alumni PGSD) UNARS</em> [Online], Volume 9 Number 1 (29 June 2021)