https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ARay%20%26%20Co.%20%2C&format=rss 8 0 50 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=12242 By Experienced Professor, .. Calcutta : Sen, Ray & Co. , 1927 . 103p. : 18cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=12242 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16971 By Sen, Mihir Kumar .. Calcutta : Sen Ray & Co. , 1931 . 187p. : 18cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=16971 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=18938 By Sen, Ramendra Kr. .. Calcutta : Sen, Ray & Co , 1954 . 35p. ; 23cm..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=18938 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=20160 By Sen, Manamohan .. Calcutta : Sen, Ray & Co., Ltd. , 1943 . 354p. : 16cm ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=20160 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=45336 By Sen, Manimohan .. Calcutta : Sen, Ray & Co., Ltd. , 1941 . xii,296p. : 12 cm. ..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=45336 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=45422 By Sen, M. .. Calcutta : Sen, Ray & Co., Ltd. , 1931 . lxxxiii,488p. ; 12 cm...

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=45422 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=46264 By Mitra, Bimal .,. Calcutta : Ray & Co. , 1970 . 128p ; 23 cm..

]]> https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=46264 ISBN: https://opac.cottonuniversity.ac.in/cgi-bin/koha/opac-detail.pl?biblionumber=46463 By Chakravarti, Sudhir .. Calcutta : A Ray & Co , . 102 p ; 22 cm..

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