Jha N, Aggarwal N. Palynostratigraphy, dating and correlation of coal bearing and associated sediments in Mamakannu area, Godavari Graben, Andhra Pradesh, India. JPS [Internet]. 2010 Dec. 31 [cited 2024 Apr. 27];59((1-3):91-106. Available from: https://www.jpsonline.co.in/index.php/jop/article/view/192