Gaya APA
Tndjung, J, W., Wijaya, L.
(2018).
Entrepreneurial Selling
(
1)
.
Jakarta:
PT Elex media.
Gaya MLA
Tndjung, Jenu, Widjaja., Wijaya, Lenny.
"Entrepreneurial Selling".
1
Jakarta:
PT Elex media,
2018.
Buku.