Rules of thumb for water and wastewater engineers per Toghraei, Moe 1968-

Available online for University of the Philippines Diliman via Wiley Online Library. Click here to access
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Piping and instrumentation diagram development per Toghraei, Moe 1968-

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Available for University of the Philippines Diliman College of Engineering via e-Textbook Reserves under Vital Source. Click here to access.