http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
7 chiến lược thịnh vượng và hạnh phúc =
Seven strategies for wealth and happiness
Giới thiệu những triết lí của doanh nhân Jim John giúp con người đạt được sự thành công và hạnh phúc trong cuộc sống
Psychological aspects,Khía cạnh tâm lý