mamay, mamay. “Utilization Ethanol Extract of Sappan Wood As an Alternative in Escherichia Coli Staining”. Journal of Midwifery and Nursing 6, no. 1 (January 30, 2024): 356-360. Accessed June 13, 2026. https://www.ejournal.iocscience.org/index.php/JMN/article/view/4565.