T. S. Zega, P. M. Pakpahan, R. Siregar, G. Sitompul, and S. Silaban, “Antibacterial activity test of Simargaolgaol (Aglaonema modestum Schott ex Engl) leaves extract against Escherichia coli and Salmonella typhi bacteria”, J.Pendidik.Kim, vol. 13, no. 2, pp. 151–158, Aug. 2021.