Azmi Muda, M., H. Ibrahim, and N. Khalid. “DIFFERENTIATION OF THREE VARIETIES OF ZINGIBER OFFICINALE ROSC. BY RAPD FINGERPRINTING”. Malaysian Journal of Science, vol. 23, no. 2, Aug. 2004, pp. 135-9, https://juku.um.edu.my/index.php/MJS/article/view/8446.