«Sikka, D., and S. Gadgil, 1980: On the maximum cloud zone and the ITCZ over Indian longitudes during the Southwest Monsoon." Monthly Weather Review, vol.108, 1840-1853». Monthly Weather Review. 108: 1840. 1980. doi:10.1175/1520-0493(1980)108<1840:OTMCZA>2.0.CO;2. ISSN1520-0493.
«Sikka, D., and S. Gadgil, 1980: On the maximum cloud zone and the ITCZ over Indian longitudes during the Southwest Monsoon." Monthly Weather Review, vol.108, 1840-1853». Monthly Weather Review. 108: 1840. 1980. doi:10.1175/1520-0493(1980)108<1840:OTMCZA>2.0.CO;2. ISSN1520-0493.