Gaya APA
Sugiarto, . et al (20,012,003).
Teknik Sampling : Sugiarto ... [et al.] (Cet.2).
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Sugiarto, . et al.
"Teknik Sampling : Sugiarto ... [et al.]".
Cet.2
Jakarta:
Gramedia Pustaka Utama,
20,012,003.
Textbook.