SARI, M. P. URGENTLY-NEEDED: STUDENT-FRIENDY LEARNING RESOURCES ON ATOMIC STRUCTURE AND PERIODICAL PROPERTIES OF ELEMENTS. SEMESTA: Journal of Science Education and Teaching, [S. l.], v. 3, n. 1, p. 37–43, 2020. DOI: 10.24036/semesta/vol3-iss1/92. Disponível em: https://semesta.ppj.unp.ac.id/index.php/semesta/article/view/92. Acesso em: 5 nov. 2024.