Khumairoh, B. ., Amin, S. M., & Wijayanti, P. . (2020). Penalaran Proporsional Siswa Kelas Menengah dalam Menyelesaikan Masalah Matematika Ditinjau dari Adversity Quotient : Proportional Reasoning of Middle School Students in Solving Mathematical Problems Viewed From Adversity Quotient. Pedagogia : Jurnal Pendidikan, 9(1), 67–80. https://doi.org/10.21070/pedagogia.v9i1.259