I. B. Siaputra, A. Rasyida, A. M. Ramadhanty, and N. K. E. Triwijati, “Exploring the usefulness of the Brief COPE in clinical and positive psychology: A discriminant content validity study”, Psikohumaniora J. Penelit. Psikol., vol. 8, no. 1, pp. 163–180, May 2023.