Mohini , Saxena and Asokan, Pappu and Alka , Mishram and S, srimanth and Arpana, Chauhan and C.R., Mishra and M.M., Seth (1997) Mobilisation of physic-chemical characteristics of wasteland soil using NALCO coal ash,. Proc. International Conference of Flyash Disposal & Utilisation . pp. 1-12.