Al-Fariz, Rifqi, et al. “Uji Efektivitas Ekstrak Batang Lengkuas (Alpinia Galanga) Terhadap Bakteri Streptococcus Pyogenes Secara In Vitro”. Jurnal Sains Natural, vol. 2, no. 4, Nov. 2024, pp. 129-33, https://doi.org/10.35746/jsn.v2i4.632.