Xianyun real person Feng Yingzhang’s “Six Lines Forecasting the Road to a Higher Level” two volumes
Xianyun real person Feng Yingzhang's "Six-Yao Prediction on the Road to a Hig...
Xianyun real person Feng Yingzhang: Lectures on Practical Forecasting Techniques in the Six Lines of the Book of Changes, Page 352
Xianyun Real Man Feng Yingzhang: Chinese I Ching Six Lines Practical Forecast...