Paidarmanesh, Navid, Mehrazin, Alireza, Abbas zadeh, Mohammad Reza, Massihabadee, Abolghassem (2024). Firm Value, Tax Evasion, Tax Planning Opportunity and Financial Crisis of Firms. *Advances in Mathematical Finance and Applications*, 9(2), 513-528.  https://doi.org/10.71716/amfa.2024.22091795