Gaya APA
Harriman, M, K. (2009).
Be optimal : reach real success in life and business (Pertama).
Jakarta:
PT. Elex Media Komputindo.
Gaya MLA
Harriman, Melani, K..
"Be optimal : reach real success in life and business".
Pertama
Jakarta:
PT. Elex Media Komputindo,
2009.
book.