Gaya APA

Mendenhall, W., Ott, L. (1990). Understanding statistics (5). United States of America: PWS-KENT Publishing Company.

Gaya MLA

Mendenhall, William., Ott, Lyman. "Understanding statistics". 5 United States of America: PWS-KENT Publishing Company, 1990. Hibah Buku Dra. Anita Lestari,.