Gaya APA

Bambang, B., Sylvie, T. (2012). Maximizing Your Leadership Performance Seri 1 (Trawas) (2). : Yayasan Leadership As.

Gaya MLA

Bambang, Budijanto., Sylvie, Tanaga. "Maximizing Your Leadership Performance Seri 1 (Trawas)". 2 : Yayasan Leadership As, 2012. Text.