Gopalan, N. P. (1972). Construction and standardization of a vocational interest inventory for the secondary school pupils of kerala.
শিকাগো স্টাইলে সাইটেশনGopalan, N. P. Construction and Standardization of a Vocational Interest Inventory for the Secondary School Pupils of Kerala. 1972.
এমএলএ সাইটেশনGopalan, N. P. Construction and Standardization of a Vocational Interest Inventory for the Secondary School Pupils of Kerala. 1972.
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