“THE STRATEGY FORMULATION OF CONCRETE SLEEPER INDUSTRY BY THE METHOD OF THREE-PRONGED STRTEGY PATTERN, CASE STUDY: INDUSTRY FACTORY OF CONCRETE SLEEPERS OF KHUZESTAN PROVINCE”. 2013. Singaporean Journal of Business Economics and Management 1 ((10): 59-67. https://singaporeanjbem.arabianjbmr.com/index.php/SJBEM/article/view/104.