Prabhakaran, P. V. (1988). Sankhyakalude jalavidya. Kerala Bhasha Institute.
Chicago Edition CitationPrabhakaran, P. V. Sankhyakalude Jalavidya. Thiruvananthapuram: Kerala Bhasha Institute, 1988.
MLA Edition CitationPrabhakaran, P. V. Sankhyakalude Jalavidya. Kerala Bhasha Institute, 1988.
Warning: These citations may not always be 100% accurate.