GHOSE, A. K., and R. K. DUBE. “ESTIMATION OF LOCAL MAGNITUDE (ML) FROM SIGNAL DURATION RECORDS OF W.W. S.S.N. SHILLONG”. MAUSAM 42, no. 1 (January 1, 1991): 110–111. Accessed September 20, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/3045.