Macdonald, R. (2007). The 7 Bad Habits of Highly Ineffective People: 7 Pelajaran Dahsyat Untuk Perubahan Diri. Hikmah.
Chicago Style (17th ed.) CitationMacdonald, Richard. The 7 Bad Habits of Highly Ineffective People: 7 Pelajaran Dahsyat Untuk Perubahan Diri. Hikmah, 2007.
MLA (8th ed.) CitationMacdonald, Richard. The 7 Bad Habits of Highly Ineffective People: 7 Pelajaran Dahsyat Untuk Perubahan Diri. Hikmah, 2007.
Warning: These citations may not always be 100% accurate.