Gaya APA

DRUCKER, P, F., SIHANDRINI, N, R, [. (2006). Classic drucker . Jakarta: Pt Bhuana Ilmu Populer.

Gaya MLA

DRUCKER, Peter, F.., SIHANDRINI, Natalia, Ruth,, [Penerj.]. "Classic drucker". Jakarta: Pt Bhuana Ilmu Populer, 2006. Text.