Gaya APA
Sari, W, R. (2018).
Positive politeness strategies as used by judges in masterchee us competition show .
Padang:
Universitas Andalas.
Gaya MLA
Sari, Widya, Ratna.
"Positive politeness strategies as used by judges in masterchee us competition show".
Padang:
Universitas Andalas,
2018.
Skripsi.