Rajan,K R. Keralathile vyavasayangal. Kerala Bhasha Institute.
Chicago Edition CitationRajan,K R. Keralathile Vyavasayangal. Thriruvananthapuram: Kerala Bhasha Institute.
MLA Edition CitationRajan,K R. Keralathile Vyavasayangal. Kerala Bhasha Institute.
Warning: These citations may not always be 100% accurate.