Muhammed Kotan, Ömer Faruk Seymen, Levent Çallı, Sena Kasım, Burcu Çarklı Yavuz, Tijen Över Özçelik. "A novel methodological approach to SaaS churn prediction using whale optimization algorithm." PLoS ONE (2025). https://doi.org/10.1371/journal.pone.0319998