APA (7th ed.) Citation

Kusumo, I. W., & Willis, V. (1989). Instructional design and development. Depdikbud.

Chicago Style (17th ed.) Citation

Kusumo, Iskandar Wiryo., and Verna Willis. Instructional Design and Development. Depdikbud, 1989.

MLA (8th ed.) Citation

Kusumo, Iskandar Wiryo., and Verna Willis. Instructional Design and Development. Depdikbud, 1989.

Warning: These citations may not always be 100% accurate.