Mun’im, A. and Mauludin, H. (2018) “The Influence of Leverage and Liquidity at Profitability with Investment Opportunity Set (IOS) as Intervening Variable- A Case study at manufacturing companies listed in Indonesian Stock Exchange in period 2013-2016”, International Journal of Management Excellence (ISSN: 2292-1648), 11(2), pp. 1598–1606. doi: 10.17722/ijme.v11i2.1015.