Balakrishna Pillai A Kesari. (1957). Pracheena keralam: Charitra gaveshanam. K R Brothers.
Chicago Edition CitationBalakrishna Pillai A Kesari. Pracheena Keralam: Charitra Gaveshanam. Kozhikkode: K R Brothers, 1957.
MLA Edition CitationBalakrishna Pillai A Kesari. Pracheena Keralam: Charitra Gaveshanam. K R Brothers, 1957.
Warning: These citations may not always be 100% accurate.