Sana Azar, Amina Talat, Feryal Khan and Anam Rana The Lahore Journal of Business, Volume 3, Issue 1, Apr - Sep 2014, pages 37-53, https://doi.org/10.35536/ljb.2014.v3.i1.a3
Samra Chaudary, Sehrish Nisar and Muhammad Abdul Rehman The Lahore Journal of Business, Volume 3, Issue 1, Apr - Sep 2014, pages 75-97, https://doi.org/10.35536/ljb.2014.v3.i1.a5