Lubis, R.H. 2017. THE EFFECT OF COOPERATIVE LEARNING MODEL GROUP INVESTIGATION AGAINST STUDENT LEARNING OUTCOMES PHYSICS VIEWED FROM THE ADVERSITY QUOTIENT. Jurnal Pendidikan Fisika. 6, 1 (Jun. 2017), 44–49. DOI:https://doi.org/10.22611/jpf.v6i1.6344.