Rayalu, S.S., J.S. Sapre, S.U. Meshram, K.N. Munshi, and R.N. Singh. 2016. “A Case Study for Synthesis of Zeolite-A from Indian Flyashes of Bituminous Origin”. Asian Journal of Chemistry 16 (2):717-26. https://asianpubs.org/index.php/ajchem/article/view/14506.