@article{202111.0527,
	doi = {10.20944/preprints202111.0527.v1},
	url = {https://doi.org/10.20944/preprints202111.0527.v1},
	year = 2021,
	month = {November},
	publisher = {Preprints},
	author = {Januar Arif Fatkhurrahman and Ikha Rasti Julia Sari},
	title = {Blue-LED Calibration on DOAS System to Measure Nitrogen Dioxide Emission Compared with USEPA Method 7B Standard},
	journal = {Preprints}
}