Gaya APA
Friend, M., Cook, L. (2010).
Interactions : Collaboration Skills For School Professionals / Marilyn Friend, Lynne Cook (Ed.6).
Boston:
Pearson.
Gaya MLA
Friend, Marilyn., Cook, Lynne..
"Interactions : Collaboration Skills For School Professionals / Marilyn Friend, Lynne Cook".
Ed.6
Boston:
Pearson,
2010.
Buku.