MEGAWATI, C. D.; ASRININGTIAS, salnan R. .; BIMA ROMADHON PARADA DIAN; TEO PEI KIAN; SUTAWIJAYA, B. .; FRANSISKA, R. D. . ECG-Based Heart Rate Variability and KNN Classification for Early Detection of Baby Blues Syndrome in Postpartum Mothers. Sinkron : jurnal dan penelitian teknik informatika, [S. l.], v. 9, n. 4, p. 2026-2037, 2025. DOI: 10.33395/sinkron.v9i4.14956. Disponível em: https://jurnal.polgan.ac.id/index.php/sinkron/article/view/14956. Acesso em: 19 apr. 2026.