A. Simanjuntak, Eko K. Budiardjo, and Kodrat Mahatma, “Scrum Maturity Level Evaluation and Improvement Recommendation: Case Study on ABC Application”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 7, no. 5, pp. 1165 - 1173, Oct. 2023.