Fisher, Andrew, Juniarny Silfana S. Waworuntu, and Imanuel R. Montolalu. 2023. “The Application of NPK Pearl Professional 9-25-25 on the Growth and Production of Red Bean Plants (Phaseolus Vulgaris L.) in Lowlands”. Jurnal Penelitian Pendidikan IPA 9 (SpecialIssue):1387-94. https://doi.org/10.29303/jppipa.v9iSpecialIssue.5820.