SHAH, Y. P. A Study of Geodesic Equation From Variational Principle. Cognition, [S. l.], v. 6, n. 1, p. 147–151, 2024. DOI: 10.3126/cognition.v6i1.64458. Disponível em: https://nepjol.info/index.php/cognition/article/view/64458. Acesso em: 17 may. 2024.