PATEL, M. વિન્યાસ. Vidyapith (વિદ્યાપીઠ), [S. l.], v. 20, n. 2, p. 94–97, 1982. Disponível em: http://journal.gujaratvidyapith.org/index.php/vp/article/view/1179. Acesso em: 15 oct. 2025.