Gaya APA
Jufrizal, . (1999).
Course book Introduction to General Linguistics (pertama).
Padang:
English Departement Satate University Of Padang.
Gaya MLA
Jufrizal, .
"Course book Introduction to General Linguistics".
pertama
Padang:
English Departement Satate University Of Padang,
1999.
Text.