BANERJEE, A.K. , SEN , P.N. and RAMAN, C. 1978. On foreshadowing southwest monsoon rainfall over India with mid-tropospheric circulation anomaly of April. MAUSAM. 29, 1 (Jan. 1978), 425–431. DOI:https://doi.org/10.54302/mausam.v29i1.2909.