“…The primary source is hard copies of editions of The State Yellow Book, published during the studied period ( Leadership Directories 1990, 1992, 1994, 1998, 2004, 2008, 2011, 2013. The primary source is hard copies of editions of The State Yellow Book, published during the studied period ( Leadership Directories 1990, 1992, 1994, 1998, 2004, 2008, 2011, 2013.…”