JHA, N. Palynological dating of coal-bearing sediments from the Bottapagudem area, Chintalpudi sub-basin, Andhra Pradesh. Journal of Palaeosciences, [S. l.], v. 53, n. (1-3), p. 61–67, 2004. DOI: 10.54991/jop.2004.210. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/210. Acesso em: 4 may. 2024.