Hello Ayesh, sorry to say that your wish may not be granted anytime soon.
In research you don't narrow your search for materials. You need to look at your study variables one after the other then search for relevant materials on them to come up with your own study.
How Do Nonprofits Respond to Regulatory Thresholds: Evidence from New York's Audit Requirements
St. Clair, T. (2016). How Do Nonprofits Respond to Regulatory Thresholds: Evidence from New York's Audit Requirements. Journal Of Policy Analysis And Management, 35(4), 772-790.
Assessing the Quality of Not-for-Profit Efficiency Ratios: Do Donors Use Joint Cost Allocation Disclosures?
Khumawala, S. B., Parsons, L. M., & Gordon, T. P. (2005). Assessing the Quality of Not-for-Profit Efficiency Ratios: Do Donors Use Joint Cost Allocation Disclosures?. Journal Of Accounting, Auditing And Finance, 20(3), 287-309.
Report on Audit of Tsunami Aid Issued
Report on Audit of Tsunami Aid Issued. (2007). International Journal of Government Auditing, 34(2), 9-10.
Willems, J. Seven trade-offs in measuring nonprofit performance and effectiveness / J. Willems, S. Boenigk, M. Jegers // Voluntas. – 2014. – No. 25. – Pp. 1648–1670.
Delia Corina Mihaltan et al. Analysing the financial effectiveness of the nonprofits. Case study on health nonprofits / Procedia Economics and Finance. – 2015. – No. 26. – Pp. 367 – 374.