Concurrent Momentum and Contrarian Strategies: Evidence from Indonesia -- Abdur Rafik, Syifa Primaratri Marizka rnCorporate Financial Flexibility, Investment Activities, And Cash Holding: Evidence From Indonesia -- Rahmat Heru Setianto, Addenver KusumaputrarnThe Effect of Competition Levels and Banking Concentration on Systemic Risks: Indonesia’s Case -- I. G. B. Erri Wibowo, Buddi Wibowo rnTowards A Sustainable Islamic Banking System: Re-embedding Murabaha Mode of Financing -- Wahyu Jatmiko rnCapital MarketrnOn the Robustness of The Extended Fama-French Three Factor Model -- Intan Nur Awwaliyah, Zaafri Ananto Husodo rn