CHOUDHURY S K HAJRA. (2004). ELEMENTS OF WORKSHOP TECHNOLOGY (13TH.). MEDIA PROMOTORS.
Chicago Style (17. basım) AtıfCHOUDHURY S K HAJRA. ELEMENTS OF WORKSHOP TECHNOLOGY. 13TH. MUMBAI: MEDIA PROMOTORS, 2004.
MLA (9th ed.) AtıfCHOUDHURY S K HAJRA. ELEMENTS OF WORKSHOP TECHNOLOGY. 13TH. MEDIA PROMOTORS, 2004.
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