Syaflir, Syaflir. “Effect Of Pictorial Riddle Learning Method On Understanding Physical Concept Of Students Of Smp Negeri 2 Painan”. Jurnal Ilmiah Pendidikan Scholastic, vol. 1, no. 3, Oct. 2018, pp. 46-53, doi:10.36057/jips.v1i3.145.