McGraw-Hill's national electrical code 2020 handbook par Hartwell, Frederic P.

Available for University of the Philippines System via AccessEngineering. Click here to access
Also available remotely for University of the Philippines System via AccessEngineering. Click here to access thru EZproxy

Blueprint reading for electricians in partnership with the NJATC.

Handbook of electrical design details par Sclater, Neil

Available for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access
Also available remotely for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access thru EZproxy

Electrical code diagrams par Segall, B. Z. (Ben Z.) 1905-