Singh, Y. Diffusion of an interdiscipline; social sciences in agriculture education; by Y.P. Singh, Udai Pareek, D.R. Arora. New Heights.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Y.P. Diffusion of an Interdiscipline; Social Sciences in Agriculture Education; by Y.P. Singh, Udai Pareek, D.R. Arora. New Heights.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Y.P. Diffusion of an Interdiscipline; Social Sciences in Agriculture Education; by Y.P. Singh, Udai Pareek, D.R. Arora. New Heights.
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