As posted by Dr. Mahathir Mohamad at Che Det on January 7, 2010 4:57 PM
I had written on Chinese Mathematics on January 1st. Many showed interest in wanting to contact Prefessor Xu Si Zhong. Here is his contact detail;
Beijing Xusizhong Abacus & Mental Arithmetic Education Science Co. Ltd Plaza Cheng Jian, 3rd Floor, Room No.B307 & 308 No.18 Beitaipingzhuang Road, Haidian District, Beijing, China
Tel: 0086.10.82255948
Email: xusizhong@xsz.net.cn or xusizhong@sina.com.cn
I had written on Chinese Mathematics on January 1st. Many showed interest in wanting to contact Prefessor Xu Si Zhong. Here is his contact detail;
Beijing Xusizhong Abacus & Mental Arithmetic Education Science Co. Ltd Plaza Cheng Jian, 3rd Floor, Room No.B307 & 308 No.18 Beitaipingzhuang Road, Haidian District, Beijing, China
Tel: 0086.10.82255948
Email: xusizhong@xsz.net.cn or xusizhong@sina.com.cn
