KARACHI, Jan 5: The National Accountability Bureau (NAB), Sindh, has sent five references against proprietors/guarantors of as many transport companies to the accountability courts for trial. According to a statement issued on Wednesday, the references were signed by the director general of the National Accountability Bureau, Sindh, for willful loan default of Rs40 million against accused Ghulam Mustafa Memon, Nadeem Ahmed Memon, Amiruddin Rahoo, Zia Ahmed Khan and Shakir Ahmed.—APP