Lasmi Van Gobel 1 ,Mar’atul Jannah Biki 2,Nikita S. Ahmad3 ,Yuni Susiyani S. Podungge 4Abdul Rahmat5 , Rusminn Husain6., “Improving Student Learning Achievement Through Diversity Books in Class 2 Theme 3 Subtheme 2 PKN Content at SDN 90 SIPATANA”, Jour. of Peda. Inve. and Prac., vol. 14, pp. 90–96, Nov. 2022.