Williams, Jr, Robert L, Omar, Maktoba and Ensor, John (2011) Sourcing or selling: value flame at the base of the pyramid. Marketing Intelligence and Planning, 29 (3). pp. 232-246. ISSN 0263-4503

Omar, Maktoba, Williams, Jr, Robert L and Ensor, John (2010) Using emerging markets as a means to diversify the industrial base. Edinburgh Napier Universtiy, School of Accounting and Economics. ISBN 9781873869925

Omar, Maktoba, Williams, Jr, Robert L and Lingelbach, D (2009) Global brand market-entry strategy to manage corporate reputation. Journal of Product & Brand Management, 18 (3). pp. 177-187. ISSN 1061 0421

Omar, Maktoba and Williams, Jr, Robert L (2009) Marketing to the bottom of the pyramid: opportunities in emerging markets. International Journal of Services, Economics and Management , 1 (4). pp. 427-446. ISSN 1753-0822

Hamann, Danilo, Williams, Jr, Robert L and Omar, Maktoba (2007) Branding strategy and consumer high-technology product. Journal of Product & Brand Management, 16 (2). pp. 98-111. ISSN 1061 0421

Omar, Maktoba and Williams, Jr, Robert L (2006) Managing and maintaining corporate reputation and brand identity: Haier Group logo. Journal of Brand Management , 13 (4/5). pp. 268-275. ISSN 1479-1803