Wijaya, D. K. M. H., Suntari, R., & Syekhfani, S. (2022). Effect of Applying Several Types of Foliar Fertilizers on Total N and K Levels in Leaves and Production of Apple (Malus sylvestris Mill.) Rome Beauty Varieties in Batu. Contributions of Central Research Institute for Agriculture, 16(4), 104–111. https://doi.org/10.59651/cceria.v16i4.10