TIWARI, R.; RAM-AWATAR. Palyno-dating of Nidpur beds, Son Graben, Madhya Pradesh. Journal of Palaeosciences, [S. l.], v. 38, p. 105–121, 1989. DOI: 10.54991/jop.1989.1645. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/1645. Acesso em: 28 apr. 2024.