@article{{SignalProcessing-Applications}{}, author = {Thakur, G.}, title = { The Field of Facemask Expressions Recognition Using PCA Classifier}, journal = {Journal of Advanced Research in Signal Processing and Applications}, volume = {5}, number = {1}, year = {2023}, url = {http://thejournalshouse.com/index.php/SignalProcessing-Applications/article/view/875} }