[1]

Brittain E, Schlesselman JJ. 1982. Optimal allocation for the comparison of proportions. Biometrics 38(4):1003

doi: 10.2307/2529880
[2]

Allison DB, Allison RL, Faith MS, Paultre F, Pi-Sunyer FX. 1997. Power and money: designing statistically powerful studies while minimizing financial costs. Psychological Methods 2(1):20−33

doi: 10.1037/1082-989x.2.1.20
[3]

Cochran WG. 1977. Sampling Techniques. John Wiley & Sons
[4]

Guo JH, Chen HJ, Luh WM. 2011. Sample size planning with the cost constraint for testing superiority and equivalence of two independent groups. British Journal of Mathematical and Statistical Psychology 64(3):439−461

doi: 10.1348/000711010X512408
[5]

Guo JH, Luh WM. 2009. Optimum sample size allocation to minimize cost or maximize power for the two-sample trimmed mean test. British Journal of Mathematical and Statistical Psychology 62(2):283−298

doi: 10.1348/000711007X267289
[6]

Luo J, Wang Y, Meza J. 2015. Optimal sample size allocation under financial constraint. Austin Biometrics and Biostatistics 2(3):1024
[7]

Chow SC, Shao J, Wang H, Lokhnygina Y. 2017. Sample Size Calculations in Clinical Research. 3rd Edition. Boca Raton: Chapman and Hall/CRC. doi: 10.1201/9781315183084
[8]

Bertsekas DP. 1997. Nonlinear programming. Journal of the Operational Research Society 48(3):334

doi: 10.1057/palgrave.jors.2600425
[9]

Lehmann EL, Casella G. 1998. Theory of Point Estimation. New York, NY: Springer New York. doi: 10.1007/b98854