Gaya APA

YIREN, . (2017). E-BOOK LEARNING MANDARIN CHINESE CHARACTERS (VOL. 2). HONG KONG: Periplus Editions (HK).

Gaya MLA

YIREN, . "E-BOOK LEARNING MANDARIN CHINESE CHARACTERS". VOL. 2 HONG KONG: Periplus Editions (HK), 2017. Computer File.