AHMAD LAZIM, AMIRUL HAFIZI, and ADAM KASANI. 2023. “Investigation on Flame Characteristics of a Flameless Combustor Ignition System Using Spiral Nozzle”. Progress in Engineering Application and Technology 4 (1): 538-44. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/10383.