R. R. Siregar, A. U. Siregar, S. A. Hasibuan, N. Nurkholidah, D. M. Gultom, and E. E. Hasibuan, “Exploring Pregnant Women’s Experiences with RNN-Based Chatbot for Reproductive Health Education at Primary Health Centers: A Qualitative Phenomenological Study”, Int Jou of PHE, vol. 6, no. 1, pp. 321–330, Jul. 2026.