TORANG SIREGAR; ALMIRA AMIR; LELYA HILDA; SUPARNI; ANITA ADINDA. Determining the Surface Area of a Tube Using the Discovery Learning Model at SMP Negeri 5 Sinunukan. COMPETITIVE: Journal of Education, [S. l.], v. 2, n. 4, p. 265–275, 2023. DOI: 10.58355/competitive.v2i4.44. Disponível em: https://competitive.pdfaii.org/index.php/i/article/view/44. Acesso em: 18 oct. 2024.