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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. 2022, 14, 90-96.