Akca, Yasar, Abdulresit Brohi, and Erdinc Savas. “Differences in Mineral Contents of Apple Leaves Associated With Fruiting and Non-Fruiting of Biennial Bearing Trees”. Asian Journal of Chemistry 17, no. 4 (June 7, 2016): 2379–2384. Accessed July 17, 2024. https://asianpubs.org/index.php/ajchem/article/view/13949.