APA (7th ed.) Citation

Muna Sakura Muhammad Perang. (2001). The influence of sociocultural factors on English proficiency.

Chicago Style (17th ed.) Citation

Muna Sakura Muhammad Perang. The Influence of Sociocultural Factors on English Proficiency. 2001.

MLA (8th ed.) Citation

Muna Sakura Muhammad Perang. The Influence of Sociocultural Factors on English Proficiency. 2001.

Warning: These citations may not always be 100% accurate.