43. M. Kurniawati, N.J. Azhari, G.T.M. Kadja, R.R. Mukti, S. Notodarmojo. “Conversion of coal fly ash into advanced crystalline materials”. IOP Conference Series: Earth and Environmental Science 623(1), 012040. (2021).

43. M. Kurniawati, N.J. Azhari, G.T.M. Kadja, R.R. Mukti, S. Notodarmojo. “Conversion of coal fly ash into advanced crystalline materials”. IOP Conference Series: Earth and Environmental Science 623(1), 012040. (2021).