Estimation of gas transfer coefficient with micro bubble technology on green roof runoff waterAbdillah Luthfi, Advent Cahyo Jati, Idham Ilyas Budhi Mahendra, Yohanes Aris Purwanto, Allen Kurniawan and Yudi ChadirinBIO Web Conf., 123 (2024) 04002DOI: https://doi.org/10.1051/bioconf/202412304002