Operation of Wastewater Treatment Plants: A Field Study Training Program
Operation of Wastewater Treatment Plants, Volume 1 7th (seventh) Edition by Kenneth D. Kerri published by University Enterprises (2008)
Advanced Waste Treatment: A Field Study Training Program
Practice Exams: Wastewater Treatment Operator Certification
Lumpy Water Math: Math for Wastewater Operators
Wastewater Treatment Plant Operations Made Easy: A Practical Guide for Licensure
Wastewater Operator Certification Study Guide
Water Treatment Plant Operation (A Field Study Training Program, Volume 1, Sixth Edition)
Operation of Wastewater Treatment Plants: A Field Study Training Program, Volume 1: 5th Edition
Operation of Municipal Wastewater Treatment Plants (3-Volume Set)