APA (7th ed.) Citation

DRUCKER, P. F., & USMARA, A. (2003). Mengelola diri = managing oneself. Amara Books.

Chicago Style (17th ed.) Citation

DRUCKER, Peter F., and A. USMARA. Mengelola Diri = Managing Oneself. Amara Books, 2003.

MLA (8th ed.) Citation

DRUCKER, Peter F., and A. USMARA. Mengelola Diri = Managing Oneself. Amara Books, 2003.

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