SHARAF, M. A.; MOMINKHAN, Z. Gravity Variations in the Kingdom of Saudi Arabia. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 11, n. 7, p. 5382–5387, 2015. DOI: 10.24297/jam.v11i7.1215. Disponível em: https://rajpub.com/index.php/jam/article/view/1215. Acesso em: 19 may. 2024.