yazdani, N., & jahan khaani, A. (1995). The effects of industry, size, business risk and companies performance degree at The use of financial leverage in companies that accepted in Tehran Stock Exchange. Management Studies in Development and Evolution, 5(17.18), 169-186.

naser yazdani; ali jahan khaani. "The effects of industry, size, business risk and companies performance degree at The use of financial leverage in companies that accepted in Tehran Stock Exchange". Management Studies in Development and Evolution, 5, 17.18, 1995, 169-186.

yazdani, N., jahan khaani, A. (1995). 'The effects of industry, size, business risk and companies performance degree at The use of financial leverage in companies that accepted in Tehran Stock Exchange', Management Studies in Development and Evolution, 5(17.18), pp. 169-186.

yazdani, N., jahan khaani, A. The effects of industry, size, business risk and companies performance degree at The use of financial leverage in companies that accepted in Tehran Stock Exchange. Management Studies in Development and Evolution, 1995; 5(17.18): 169-186.