R. A. dos Santos, H. P. Haag, and K. Minami, “ Mineral nutrition of sesame plants (Sesamun indicum L.): I - concentration an accumulation of macronutrients under field conditions ”, An. Esc. Super. Agr. Luiz de Queiroz, vol. 39, no. 2, pp. 961–994, Jan. 1982, doi: 10.1590/S0071-12761982000200020.