H. . Hariadi, C. E. W. . Anggara, F. . Novianti, N. . Rahman, and N. . Rahman, “Optimization of Snackbar product formulation based on butterfly pea flower extract (Clitoria Ternatea L.) and canna tuber flour by d-optimal design expert mixture methods”, ijirss, vol. 8, no. 10, pp. 62–85, Oct. 2025.