E. Elyasari, F. Fitriyanti, K. Kartini, I. G. A. M. W. Sastri, and F. Feryani, “Nonpharmacological Intervention of Anxiety in Primigravida Trimester III Pregnant Women with Brain Training Games”, Health Inf J Penelit, vol. 15, no. 1, pp. 97–106, Apr. 2023.