1. Mohamad R., Ismail S., Mohd Said J.M., (2018) "Performance indicators for public private partnership (PPP) projects in Malaysia", Journal of Economic and Administrative Sciences, Vol. 34 No. 2, pp. 137-152, DOI: 10.1108/JEAS-04-2017-0018.
2. “Promoting People first Public-Private Partnerships (PPPs) for the UN SDGs United Nations Economic Commission for Europe” (2016), available at: https://www.un.org/esa/ffd/wp-content/uploads/2016/01/Promoting-People-first-Public-Private-Partnerships-PPPs-for-the-UN-SDGs_UNECE_IATF-Issue-Brief.pdf (accessed: January, 27, 2021).
3. Babatunde S.O., Adeniyi O., Awodele O.A., (2017) "Investigation into the causes of delay in land acquisition for PPP projects in developing countries", Journal of Engineering, Design and Technology, Vol. 15, No. 4, pp. 552-570, DOI: 10.1108/JEDT-05-2016-0029.
4. Evaluating the environment for public-private partnerships in Asia-Pacific: The 2011 Infrascope (2012), available at: https://www.adb.org/publications/evaluating-environment-public-private-partnerships-asia-pacific-2011-infrascope (accessed: January 27, 2021).
5. Soltangazinov A., Smagulova Z., Amirova, M., Kadyrova A., Kaidarova S., and Zolotareva S. (2017), “Development of Kazakhstan's social and economic potential based on public-private partnership activation”, Revista Espacios, Vol. 38, No. 34, 35 p.