Raman Nampoothiri Kummini. (1981). Chess-Thathwika Prarambhangal. Granthakartha.
Chicago Style aipamenaRaman Nampoothiri Kummini. Chess-Thathwika Prarambhangal. Granthakartha, 1981.
MLA aipamenaRaman Nampoothiri Kummini. Chess-Thathwika Prarambhangal. Granthakartha, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.