P. D. Kusumawati, Koesnadi, Fonnie Kuhu, Reni Nurhidayah, and Yan Deivita, “The Efficacy of a Mobile Application-Based Cognitive Behavioral Therapy (CBT) in Reducing Anxiety and Depression Symptoms Among Young Adults in the Post-COVID-19 Pandemic: A Randomized Controlled Trial”, Int Jou of PHE, vol. 5, no. 1, pp. 172–183, Nov. 2025.