TY - BOOK AU - Schmitt, Bernd H. AU - Van Zutphen, Glenn TI - Happy customers everywhere : how your business can profit from the insights of positive psychology PB - Palgrave Macmillan PY - 2012 EP - x, 246 p. UR - https://ci.nii.ac.jp/ncid/BB15379439 SN - 9780230116450 ER -