Farah Nabila Nur Afifah. DEVELOPMENT OF QR CODE BASED POP UP BOOK ON EARLY MARRIAGE MATERIAL FOR EARLY ADOLESCENTS. TEK.PEND [Internet]. 2024 Nov. 19 [cited 2025 Dec. 15];13(1). Available from: http://150.107.142.43/index.php/TEK/article/view/18149