AK Lokhithakshan. (2000). Paristhithi niyamangal. Kerala bhasha institute.
Chicago Edition CitationAK Lokhithakshan. Paristhithi Niyamangal. Thiruvananthapuram: Kerala bhasha institute, 2000.
MLA Edition CitationAK Lokhithakshan. Paristhithi Niyamangal. Kerala bhasha institute, 2000.
Warning: These citations may not always be 100% accurate.