Sulastri S. UPAYA MENINGKATKAN MINAT BELAJAR SISWAMELALUI MODEL PEMBELAJARAN PORTOFOLIOPADA PELAJARAN IPS KELAS IVSDN 1 KETEGUHAN. lentera [Internet]. 2018 Oct. 17 [cited 2024 Jul. 3];11(2):65-82. Available from: https://jurnal.stkippgribl.ac.id/index.php/lentera/article/view/433