TY - JOUR ID - UNY29996 AV - public TI - USING VARIATION TECHNIQUES OF CONCEPT CORRELATION IN THE PROBLEM BASED LEARNING MODEL TOWARD STUDENTS? ACHIEVEMENT SN - 978-979-96880-8-8 UR - http://eprints.uny.ac.id/29996/ JF - Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2015 PB - Faculty of Mathematics and Natural Sciences Yogyakarta State University A1 - Suciati, Suciati A1 - Puspita, Puspita ER -