Gaya APA
L.McCASKILL, W.
(1995).
HOW TO GET THROUGH TO PROPLE IN SELLING
(
1)
.
Singapore:
SSMB.
Gaya MLA
L.McCASKILL, WILLIAM.
"HOW TO GET THROUGH TO PROPLE IN SELLING".
1
Singapore:
SSMB,
1995.
Text.