A., M. T. .; SINGH, K. K. .; PANDEY, A. C. .; SINGH, Y. P. .; KANDPAL, B. K. . CALIBRATION AND VALIDATION OF THERMAL-TIME BASED MODELS FOR FOREWARNING OF APHID PEST IN RAPESEED-MUSTARD CROP IN INDIA. MAUSAM 2021, 72, 501-506.