Gaya APA
GRONDZIK, W, T., KWOK, A, G. (2015).
Mechanical and electrical equipment for building (12th ed.).
New Jersey:
John Wiley & Sons.
Gaya MLA
GRONDZIK, Walter, T.., KWOK, Alison, G..
"Mechanical and electrical equipment for building".
12th ed.
New Jersey:
John Wiley & Sons,
2015.
Buku.