Rina, R., Bennu, S. . and Sukayasa, S. (2020) “Profile of Problem Solving Systems in Linear Equations of Three Variabels of Class X Students in Terms of Mathematical and Gender Anxiety Based in MAN 2 Palu”, Jurnal Riset Pendidikan MIPA. Palu, Sulawesi Tengah - INDONESIA, 4(1), pp. 25-31. doi: 10.22487/j25490192.2020.v4.i1.pp25-31.