Adrianti, L. et al. (2026) “Nationwide PM2.5 Concentration Prediction in Indonesia Using GRU, GRU-Attention, and BiGRU-Attention Models with Sentinel-5P and ERA5-Land Data”, International Journal Software Engineering and Computer Science (IJSECS), 6(2), pp. 853–867. doi:10.35870/ijsecs.v6i2.7488.