Gopalakrishnan ,Naduvattam. (2002). Gaveshana Reethi Sasthram. Kerala Bhasha Institute.
Chicago Edition CitationGopalakrishnan ,Naduvattam. Gaveshana Reethi Sasthram. Thiruvananthapuram: Kerala Bhasha Institute, 2002.
MLA Edition CitationGopalakrishnan ,Naduvattam. Gaveshana Reethi Sasthram. Kerala Bhasha Institute, 2002.
Warning: These citations may not always be 100% accurate.