Asli Colpan; Geoffrey Jones (2016). "Business Groups, Entrepreneurship and the Growth of the Koç Group in Turkey". Business History. 58 (1): 69–88. doi:10.1080/00076791.2015.1044521. S2CID154831999.
Geoffrey Jones; Tarun Khanna (2006). "Bringing History (back) to International Business". Journal of International Business Studies. 37 (4): 453–468. doi:10.1057/palgrave.jibs.8400198. S2CID146197812.
Asli Colpan; Geoffrey Jones (2016). "Business Groups, Entrepreneurship and the Growth of the Koç Group in Turkey". Business History. 58 (1): 69–88. doi:10.1080/00076791.2015.1044521. S2CID154831999.
Geoffrey Jones; Tarun Khanna (2006). "Bringing History (back) to International Business". Journal of International Business Studies. 37 (4): 453–468. doi:10.1057/palgrave.jibs.8400198. S2CID146197812.