Mandarin Chinese for Beginners by Yi Ren & Xiayuan Liang

…well-written and helps you speak Chinese in no time. --FluentU.com

Mandarin Chinese for Beginners

Yi Ren & Xiayuan Liang

Chinese Language Studies
Mandarin Chinese Picture Dictionary

Yi Ren

Chinese Language Studies
Learning Mandarin Chinese Characters Volume 1

Yi Ren

Chinese Language Studies
Learning Mandarin Chinese Characters Volume 2

Yi Ren

Chinese Language Studies
Innovations in Industrial Engineering II

Jose Machado, Filomena Soares, Justyna Trojanowska, Vitalii Ivanov, Katarzyna Antosz, Yi Ren, Vijaya Kumar Manupati & Alejandro Pereira

Business & Personal Finance
Model-Based Reliability Systems Engineering

Yi Ren, Cheng Qian, Dezhen Yang, Qiang Feng, Bo Sun & Zili Wang

Engineering