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ROY K.P, HAJARA CHOUDHURY S.K & ROY NIRJHAR. (2018). ELEMENTS OF MECHANICAL ENGINEERING. : MEDIA PROMOTERS & PUBLISHERS PVT.
ROY K.P, HAJARA CHOUDHURY S.K and ROY NIRJHAR. 2018. ELEMENTS OF MECHANICAL ENGINEERING. : MEDIA PROMOTERS & PUBLISHERS PVT.
ROY K.P, HAJARA CHOUDHURY S.K and ROY NIRJHAR. (2018). ELEMENTS OF MECHANICAL ENGINEERING. : MEDIA PROMOTERS & PUBLISHERS PVT.
ROY K.P, HAJARA CHOUDHURY S.K and ROY NIRJHAR. ELEMENTS OF MECHANICAL ENGINEERING. : MEDIA PROMOTERS & PUBLISHERS PVT. 2018.