Gaya APA

Krames, J, A. (2002). The jack welch lexion of leadership: leksikon kepemimpinan jack welch . Gorontalo: ANDI.

Gaya MLA

Krames, Jeffrey, A.. "The jack welch lexion of leadership: leksikon kepemimpinan jack welch". Gorontalo: ANDI, 2002. Text.