JOhn,M. Chalakkal. (1987). Keralathile sahakaranaprasthanam. Kerala Bhasha Institute.
Chicago Edition CitationJOhn,M. Chalakkal. Keralathile Sahakaranaprasthanam. Thiruvanathapuram: Kerala Bhasha Institute, 1987.
Cita MLAJOhn,M. Chalakkal. Keralathile Sahakaranaprasthanam. Kerala Bhasha Institute, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.