Gaya APA
Putra, S, P. (1999).
Oral error correction and its to the speaking skill .
Malang:
Fakultas Ekonomi Universitas Merdeka Malang.
Gaya MLA
Putra, Suatmo, Pantja.
"Oral error correction and its to the speaking skill".
Malang:
Fakultas Ekonomi Universitas Merdeka Malang,
1999.
Text.