T. Alfred Lumban Batu, K. Dorliana Sitanggang, S. Hartati Yusida Saragih, and Y. Sepriani, “Morphological Diversity of Double Petal Telang (Clitoria ternatea L.) in Several Flower Colors”, JUATIKA, vol. 6, no. 2, pp. 386–392, May 2024.