Krisana Krisanapook, Yoshie Motomura, Takashi Saito, Ryosuke Ogata, and Suranant Subhadrabandhu. “The Effects of Paclobutrazol, Calcium and Hydrogen Cyanamide on Growth Cessation and Bud Burst of Apple Grown Under Warm Glasshouse Conditions”. Agriculture and Natural Resources, vol. 24, no. 2, June 1990, pp. 218-23, https://li01.tci-thaijo.org/index.php/anres/article/view/242126.