Kueh, Lee Gek, and Nickholas Anting Anak Guntor. “Concrete Strength Prediction Using Artificial Neural Network Machine Learning Algorithm”. Recent Trends in Civil Engineering and Built Environment, vol. 2, no. 1, June 2021, pp. 700-9, https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/1268.