الغفور جاسم سالم عبد. 2005. “Application of a Markov Chain Model on the Popular Transformation Between the Cities of (Nineva, Saladean, Tameem) for the Period 1977-1997”. IRAQI JOURNAL OF STATISTICAL SCIENCES 5 (1):80-95. https://doi.org/10.33899/stats.2005.032821.