TY  - BOOK
AU  - Haekal, Muhammad Husain
AU  - Ali Audah
AU  - Judul
TI  - Academy of Management Learning & Education: Vol. 17, No.2, June 2018
SN  - 9971773937
PY  - 1999///
CY  - Singapura
PB  - Pustaka Nasional Pte Ltd
KW  - Caliphs Biography
ER  -