TY - BOOK ED - Siʻdah, ʻAbd Allāh ʻAbd al-Ḥayy Mūsā. TI - ʻIlm al-nafs AV - HF5429 .S53 1960 PY - 1960///] KW - Psychology, Industrial KW - Retail trade N1 - Romanized ER -