Penggayaan APA
Willis, Edward M. (1987).
Schedulling Construction Projects (Edisi 1).
USA:
Universty of North Carlinaa charlotte.
Chicago Style
Willis, Edward M.
Schedulling Construction Projects.
Edisi 1
USA:
Universty of North Carlinaa charlotte,
1987.
Buku.
MLA Style
Willis, Edward M.
Schedulling Construction Projects.
Edisi 1
USA:
Universty of North Carlinaa charlotte,
1987.
Buku.
Turabian Style
Willis, Edward M.
Schedulling Construction Projects.
Edisi 1
USA:
Universty of North Carlinaa charlotte,
1987.
Buku.