Arianis, A. (2018) “Improving Ipa Students’ Achievement In Green Growth Materials At The Fifth Grade Students Through Cooperative Learning Method Type Stad In Sdn 06 Perawang Barat 2013/ 2014”, Jurnal Ilmiah Pendidikan Scholastic, 1(3), pp. 79–86. doi: 10.36057/jips.v1i3.149.