Sampurnaningsih, Sri Retnaning, and Muhammad Ikhsyan. 2022. “Impact Of Current Ratio (Cr) And Debt To Asset Ratio (Dar) On Return On Assets (Roa) at PT. Smart Tbk Period 2011-2020”. Adpebi Science Series, October. http://adpebipublishing.com/index.php/AICMEST/article/view/111.