T. RAMPRAKASH and D. SRINIVASA CHARY, J.D. SARITHA, S. SRIDEVI, M. VENKATA RAMANA,. 2021. “GROWTH AND PRODUCTIVITY OF RABI GROUNDNUT AFTER THIRTEEN DOUBLE CROP CYCLES UNDER ORGANIC NUTRIENT MANAGEMENT”. The Journal of Research, PJTSAU 49 (3). https://epubs.icar.org.in/index.php/TJRP/article/view/118806.