岩泉拓哉

行銷無障礙 by: 王燕萍; 岩泉拓哉 (Language materials, printed) , [著]

讓人說Yes的成功心理法則 by: 李玉達; 岩泉拓哉 (Language materials, printed) , [著]

雙贏厚黑學 : 絕對說服術 by: 岩泉拓哉; 林佳欣 (Language materials, printed) , [作]

如何讓你不被拒絕 by: 李玉達; 岩泉拓哉 (Language materials, printed) , [編著]