http://library.bids.org.bd/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22Bangladesh%22%20and%20su-to%3APolitics%20and%20su-to%3AHistory%20and%20au%3AUmar%2C%20Badruddin&format=rss2 4 0 500 ISBN http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=24928 By | Umar. Dhaka | 1973 | Mowla Brothers BD | . | xiii, 344p.

]]> http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=24928 ISBN http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=19073 By Umar, Badruddin. Dhaka : Afsar Brother's , 1997 . 123p. ; 20 cm..

]]> http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=19073 ISBN http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=43213 By Umar, Badruddin. Dhaka : Mowla Brothers , 1975 . 150p. : 20 cm..

]]> http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=43213 ISBN http://library.bids.org.bd/cgi-bin/koha/opac-detail.pl?biblionumber=43214 By Umar, Badruddin. Dhaka : Pallab Publishers , 1988 . 100p. : 20 cm..

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