References

Diez, David M., Christopher D. Barr, and Mine Çetinkaya-Rundel. 2019. OpenIntro Statistics. 4th ed. OpenIntro.

Spellman, Frank R. 2014. Basic Mathematics for Water and Wastewater Operators. 2nd ed. CRC Press.

———. 2024. Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations: Math Concepts and Calculations. 3rd ed. CRC Press. https://doi.org/10.1201/9781003354307.

Stewart, James, Lothar Redlin, and Saleem Watson. 2012. Precalculus: Mathematics for Calculus. 6th ed. Brooks/Cole, Cengage Learning.