A. M. Alif, M. Karim, A. V. Kartika, Y. Sodiqah, and R. F. Syamsu, “Antibacterial Effectiveness of Star Anise Extract (Illicium verum) Against the Growth of Klebsiella pneumoniae ESBL”, JIKA, vol. 8, no. 1, pp. 55–65, Apr. 2026.