Balan ,T S. (1981). Sahakarananvidyabhyasavum pariseelanavum: Co -operative education and training. State institute of languages.
Παραπομπή Chicago StyleBalan ,T S. Sahakarananvidyabhyasavum Pariseelanavum: Co -operative Education and Training. Thiruvananthapuram: State institute of languages, 1981.
Παραπομπή MLABalan ,T S. Sahakarananvidyabhyasavum Pariseelanavum: Co -operative Education and Training. State institute of languages, 1981.
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