RAO and K. ANAND SINGH, K. DATTATRI, G. RAJENDER REDDY, N. SUDHAKAR, A.R.REDDY, N. VENKATESHWAR. “EVALUATION AND UPSCALING OF ZERO TILLAGE MAIZE (Zea Mays L.) – A RESOURCE CONSERVATION TECHNOLOGY IN ANDHRA PRADESH”. The Journal of Research, PJTSAU, vol. 43, no. 3, Feb. 2017, https://epubs.icar.org.in/index.php/TJRP/article/view/67925.