Gaya APA
Beatrix, S. (2010).
I love.to organizer 2 new & revised edition .
Jakarta:
PT.Gramedia pustaka utama.
Gaya MLA
Beatrix, Sofie.
"I love.to organizer 2 new & revised edition".
Jakarta:
PT.Gramedia pustaka utama,
2010.
Manajemen Administrasi D3.