Irawan, A. I., Anggraeni, I. A., & Margaretta, M. C. (2015). Identification Causes Leaf Spot Disease in Cempaka (Magnolia elegans (Blume.) H.Keng) Seedling and Its Control Techniques. Jurnal Wasian, 2(2), 87-94. https://doi.org/10.62142/mhayeq96