Hamdan, Oemar and Bohari, Abdul Manaf (2010) Syarikat korporat ICT dan pelaksanaan tanggungjawab sosial korporat: Klasifikasi, rasionaliti dan penerapan prinsip Islam. In: International Seminar, Economic Regional Development, Law and Governance in Malaysia and Indonesia, 7-9 June 2010, Universitas Islam Riau Indonesia. Universitas Islam Riau Indonesia, Pekan Baru, Riau, pp. 1-10. ISBN 9789832078425

Hashim, Mohd Khairuddin and Hamdan, Oemar (2006) Exploring the business strategy of Malaysian exporting manufacturing firms. Khazanah jurnal ilmiah keislaman dan kemasyarakatan , 5 (5). pp. 467-482. ISSN 0215-837x

Hashim, Mohd Khairuddin and Zakaria, Mustafa and Hamdan, Oemar (2005) Strategic thinking : What, why and how. Jurnal Akuntasi, Manajemen dan Ekonomi, 7 (2). pp. 80-91. ISSN 1410-9336

Mahajar, Abdul Jumaat and Hamdan, Oemar (2004) International operation management: It's importance to Malaysian firms. Jurnal ilmiah manajemen mutu , 3 (1). pp. 92-105. ISSN 1412-5021