孫建

名师解密素描肖像 = Problem solving with master : sketched head portrait / by: 凌網科技股份有限公司; 何丹; 孫建 (Language materials, printed)

中国区域技术创新绩效计量研究 by: 孫建; 凌網科技股份有限公司 (Language materials, printed)

功夫 色调范本 by: 孫建; 徐長平; 凌網科技股份有限公司 (Language materials, printed)