1. Ahmad, I., & Ahmad, S. (2019). The Mediation Effect of Strategic Planning on The Relationship Between Business Skills and Firm’s Performance: Evidence from Medium Enterprises in Punjab, Pakistan. Opcion, 35(24), 746-778.
2. Ahmad, I., Sahar. (2019). Waste Management Analysis From Economic Environment Sustainability Perspective. International Journal Of Scientific & Technology Research 8(12), 1540-1543.
3. Ahmad, I., & Ahmad, S. (2018). Multiple Skills and Medium Enterprises’ Performance in Punjab Pakistan: A Pilot Study. Journal of Social Sciences Research, 7(4), 44-49.
4. Cash, R. M. (2017). Advancing differentiation: Thinking and learning for the 21st century. Free Spirit Publishing.
5. Erickson, H. (2012). Concept-based teaching and learning, International Baccalaureate Organization, Geneva, Switzerland.