Gaya APA

IMPEY, G., UNDERHILL, N, [. (1994). The ELT manager's handbook : practical advice on managing a successful language school . Oxford: Heinmann.

Gaya MLA

IMPEY, Graham., UNDERHILL, Nic, [pengbers]. "The ELT manager's handbook : practical advice on managing a successful language school". Oxford: Heinmann, 1994. Buku.