Dr. Vivi Suwanti, S.Si., M.Pd.1Prospective Indonesian Secondary Mathematics Teachers' Epistemological Obstacles in Designing Project-Based Numeracy Tasks: A Case Study2The development of a learning media using motion paths in the circle learning material3ANALISIS PEMECAHAN MASALAH MATEMATIKA MENURUT POLYA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL
