ARDHANA, W., & WILLIS, V. (1989). Readings in instructional development vol.2. Depdikbud.
Chicago-čujuhus (17. p.)ARDHANA, Wayan, juo Verna WILLIS. Readings in Instructional Development Vol.2. Jakarta: Depdikbud, 1989.
MLA-čujuhus (9. p.)ARDHANA, Wayan, juo Verna WILLIS. Readings in Instructional Development Vol.2. Depdikbud, 1989.
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