Zana, Happiness, Suryo Budi Santoso, Dwi Winarni, Bima Cinintya Pratama, and Ira Hapsari. “The Effect of Efficiency, Market Ratio, Liquidity and Leverage on Financial Performance: Evidence from Jakarta Islamic Index 70 (JII70)”. Economics and Business Journal (ECBIS) 4, no. 6 (August 11, 2026): 2929–2952. Accessed August 13, 2026. https://ecbis.net/index.php/go/article/view/533.