Hajja, M., Bullen, P. S., Matkowski, J., Neuman, E., & Simic, S. (2013). Means and Their Inequalities. International Journal of Mathematics and Mathematical Sciences, 2013(), 223-223. https://doi.org/10.1155/2013/698906
Yang, G. S., Liu, S. J., & Chen, Y. J. (2012). Inequalities on Several Quasi-Arithmetic Means. Tamkang Journal of Mathematics, 43(2), 259-266. https://www.airitilibrary.com/Article/Detail?DocID=00492930-201206-201206200011-201206200011-259-266
Shi, H. N., Li, D. M., & Zhang, J. (2012). Refinements of Inequalities among Difference of Means. International Journal of Mathematics and Mathematical Sciences, 2012(), 560-574-041. https://doi.org/10.1155/2012/315697
Haber, S. (1979). AN ELEMENTARY INEQUALITY. International Journal of Mathematics and Mathematical Sciences, 1979(), 531-535. https://doi.org/10.1155/S0161171279000429