Gaya APA
Wahyuni, S. (2015).
Qualitative research method : theory and practice 2 Edition (Edition 2).
Jakarta:
Salemba 4.
Gaya MLA
Wahyuni, Sari.
"Qualitative research method : theory and practice 2 Edition".
Edition 2
Jakarta:
Salemba 4,
2015.
UMUM.