Siregar, I. P. S., Widyasari, R., & Prasetya, N. H. (2021). A Weighted Markov Chain Application to Predict Consumer Price Index When Facing Pandemic Covid-19. Quadratic: Journal of Innovation and Technology in Mathematics and Mathematics Education, 1(1), 41–46. https://doi.org/10.14421/quadratic.2021.011-06