Gaya APA
Butler, F, C. (1972).
Instructional System Development For Vocational And Technical Training (Ed. Ke - 2).
Englewood Cliffs, NJ:
Educational Technology Publications.
Gaya MLA
Butler, F, Coit.
"Instructional System Development For Vocational And Technical Training".
Ed. Ke - 2
Englewood Cliffs, NJ:
Educational Technology Publications,
1972.
Text.