Huber Nieto-Chaupis Algebra-Based Analysis of Crude Oil Price in a 50 Years Data. 1-5 2025 ICECET https://doi.org/10.1109/ICECET63943.2025.11471906 conf/icecet/2025 db/conf/icecet/icecet2025.html#Nieto-Chaupis25