Wass, Alonzo
Reston, VA: Reston Publishing, 1973
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Robert L. Peurifoy, Clifford J. Schexnayder, Robert Schmitt, Aviad Shapira
McGraw-Hill Education, 2018
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Simmons, H. Leslie, author
Wiley, 2011
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Nunnally, Stephen. W., 1927-, author
Prentice-Hall, 1993
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Arora, S.P., author
Dhanpat Rai and Sons, 1986
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