Gaya APA
Purba, M, P.
(2009).
Asumsi Going Concern
(
1)
.
Yogyakarta:
Graha Ilmu.
Gaya MLA
Purba, Marisi, P..
"Asumsi Going Concern".
1
Yogyakarta:
Graha Ilmu,
2009.
Textbook.