PENINGKATAN KEMAMPUAN OPERASI HITUNG PECAHAN DAN PRESTASI BELAJAR OPTIKA MELALUI MODEL PEMBELAJARAN KOOPERATIVE TIPE TWO STAY TWO STRAY (TS TS ) 18 Juni 201918 Juni 2019 ustjournal007 FKIP - Fisika Keywords Cooperative Learning Model Type TS TS, Capability Operations Fractions Count, Learning Achievement Optics Link Download