BHUSHAN, Satya. Snakes and Ladders since Ancient Times. THE PRIMARY TEACHER, [S. l.], v. 41, n. 4, p. p.53–54, 2016. Disponível em: http://ejournals.ncert.gov.in/index.php/tpt/article/view/1387. Acesso em: 19 aug. 2025.