APA (7th ed.) Citation

SITORUS, R. H. (1993). English adjectives 1. Pionir Jaya.

Chicago Style (17th ed.) Citation

SITORUS, Ronald H. English Adjectives 1. Bandung: Pionir Jaya, 1993.

MLA (9th ed.) Citation

SITORUS, Ronald H. English Adjectives 1. Pionir Jaya, 1993.

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