& Rabee, Jaddo. “EFFECT OF SALICYLIC AND HUMIC ACID ON VINCRISTINE AND N, P, K CONTENT IN MADAGASCAR PERIWINKLE LEAVES”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 47, no. 2 (April 21, 2016). Accessed May 2, 2024. https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/600.