Govindan Nampoothiri, G. (1993). Kerala kettida vadaka niyanthrana niyamam. State Institute of Languages.
Chicago Edition CitationGovindan Nampoothiri, G. Kerala Kettida Vadaka Niyanthrana Niyamam. Thiruvananthapuram: State Institute of Languages, 1993.
MLA Edition CitationGovindan Nampoothiri, G. Kerala Kettida Vadaka Niyanthrana Niyamam. State Institute of Languages, 1993.
Warning: These citations may not always be 100% accurate.