Gaya APA
Campbell, M, V.
(2001).
Mastering Lotus HAL
(
Cet. 1)
.
U.S.A:
SYBEX.
Gaya MLA
Campbell, Marry, V.
"Mastering Lotus HAL".
Cet. 1
U.S.A:
SYBEX,
2001.
Teknik Komputer.