S. I. Aisyah, K. Khotimah, and K. Krisantini, “Evaluation of Commercial Sunflower (<i>Helianthus annuus</i> L.) Cultivars in Bogor, Indonesia for Ornamental and Nursery Production”, JTCS, vol. 1, no. 1, pp. 13–16, Jun. 2014.