Asyrofi, Anang, 		Anggriani, Indira, AND 		Soemarsono, Annisa.
" Implementation of Discrete Time Markov Chain Method to Estimate The Transition of Smartphone Brands Usage in Balikpapan" <em>Jurnal ILMU DASAR</em> [Online], Volume 24 Number 2 (10 July 2023)