1. Pham, H.H. (1999). Plants in Viet Nam, V. 2, The Youth Publisher, Ho Chi Minh City, pp. 212–219.
2. Vo, V.C. (1996). Dictionary of Vietnamese Herbs, Medicinal Publishing House, rHa Noi, pp. 1175.
3. Do, T.L. (1999). Vietnamese Medicinal Plants, Medicinal Publishing House, Ha Noi, pp. 146–148.
4. Mehra, S., Dwivedi, B. (1978). Studies in Indian pine oleoresin gums-turpentine oils from indigenous pines, Newer Trends in Essential Oils and Flavours, Tata McGraw-Hill Publishing, New Delhi, pp 85–114.