[1]
2016. BETWEEN FORMAL AND INFORMAL THINKING: THE USE OF ALGEBRA FOR SOLVING GEOMETRY PROBLEMS FROM THE PERSPECTIVE OF VAN HIELE THEORY. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam. 21, 2 (Oct. 2016), 108–113. DOI:https://doi.org/10.18269/jpmipa.v21i2.44254.