APA (7th ed.) Citation

Hubbard, L. R., Soemanto, B., & Soemanto, N. B. (2002). Study skill for life=ketrampilan belajar seumur hidup. Grasindo.

Chicago Style (17th ed.) Citation

Hubbard, L. Ron, Bakdi Soemanto, and Nin Bakidi Soemanto. Study Skill for Life=ketrampilan Belajar Seumur Hidup. Grasindo, 2002.

MLA (8th ed.) Citation

Hubbard, L. Ron, et al. Study Skill for Life=ketrampilan Belajar Seumur Hidup. Grasindo, 2002.