Yang, Perlie Mandarin 1 / Perlie Yang and Sheryl Chua. - Intramuros, Manila: Unlimited Books, c2016. - xii, 168 p. ; 21 cm. Includes bibliography. ISBN: 978-971-9654-37-7 (pbk.) Subjects--Topical Terms: Chinese language --English. --conversation and phrase Mandarin dialects.