Khakpour, S. (2015) “Optimization of micropropagation by different concentration of vitamins and sucrose in St. John’s Wort (Hypericum Perforatum)”, Plant Breeding and Seed Science, 71, pp. 67–79. Available at: http://ojs.ihar.edu.pl/index.php/pbss/article/view/266 (Accessed: 27 July 2024).