Safaya, R. (1992). Development of Educational theory & practice. Dhanpat rai & sons.
Lua i Stíl Chicago (17ú heag.)Safaya, R. Development of Educational Theory & Practice. Delhi: Dhanpat rai & sons, 1992.
Lua MLA (9ú heag.)Safaya, R. Development of Educational Theory & Practice. Dhanpat rai & sons, 1992.
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