et. al., Vikas Modgil,. “Mathematical Modeling and Time Dependent Availability Analysis of Poly - Ethylene Terephthalate Bottle Hot Drink Filling System: A Case Study”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 10 (April 28, 2021): 1822–1829. Accessed May 6, 2024. https://turcomat.org/index.php/turkbilmat/article/view/4654.