Numismatic Literature，Zhou, Yi, Hanqu Ertiqian Hetian Maqian Xintan (A New Study into the Yutian Kingdom Bilingual Horse Money), Published by the Hebei Peoples Publishing House, Shijiazhuang, 2018, 173 pages, softcover with photos throughout, a specialized Sino-Kharoshthi catalog with many photos of the Yutian Kingdom of Khotan (Hétián) Han-Kharosthi bilingual horse coinage, Chinese text.
