Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Supardan Muhammad Dani and Masuda Yoshifumi and Maezawa Akinori and Uchida Shigeo,Use of Ultrasonic Technique for Measuring Interfacial Area in a Two-Dimensional Bubble Column,JOURNAL OF CHEMICAL ENGINEERING OF JAPAN,00219592,"The Society of Chemical Engineers, Japan",2006,39,7,687-692,https://cir.nii.ac.jp/crid/1390282679545421184,https://doi.org/10.1252/jcej.39.687