R.S.Sharma. (2009). Rashtreeya sangalpangalum sthapanangalum pracheena Bharathathil-oru nireekshanam. D.C.Books.
Chicago-stil citatR.S.Sharma. Rashtreeya Sangalpangalum Sthapanangalum Pracheena Bharathathil-oru Nireekshanam. Kottayam: D.C.Books, 2009.
MLA-referensR.S.Sharma. Rashtreeya Sangalpangalum Sthapanangalum Pracheena Bharathathil-oru Nireekshanam. D.C.Books, 2009.
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