Jansz, E.R., Santhiramoulesan, S., Ratnayake, K.D., Goonetilleke, L.A. and Ramasundara, N.S.K., 1980. Studies on the Pinus species growing in Sri Lankan plantations. II. Turpentine content of Pinus caribaea oleoresin and studies directed towards the commercial extraction of turpentine. Journal of the National Science Foundation of Sri Lanka, 8(1), pp.53–60.

Jansz ER, Santhiramoulesan S, Ratnayake KD, Goonetilleke LA, Ramasundara NSK. Studies on the Pinus species growing in Sri Lankan plantations. II. Turpentine content of Pinus caribaea oleoresin and studies directed towards the commercial extraction of turpentine. Journal of the National Science Foundation of Sri Lanka. 1980;8(1):53–60.

Jansz, E. R., Santhiramoulesan, S., Ratnayake, K. D., Goonetilleke, L. A., & Ramasundara, N. S. K. (1980). Studies on the Pinus species growing in Sri Lankan plantations. II. Turpentine content of Pinus caribaea oleoresin and studies directed towards the commercial extraction of turpentine. Journal of the National Science Foundation of Sri Lanka, 8(1), 53–60.

1. Jansz ER, Santhiramoulesan S, Ratnayake KD, Goonetilleke LA, Ramasundara NSK. Studies on the Pinus species growing in Sri Lankan plantations. II. Turpentine content of Pinus caribaea oleoresin and studies directed towards the commercial extraction of turpentine. Journal of the National Science Foundation of Sri Lanka. 1980;8(1):53-60.

Jansz ER and others, ‘Studies on the Pinus Species Growing in Sri Lankan Plantations. II. Turpentine Content of Pinus Caribaea Oleoresin and Studies Directed Towards the Commercial Extraction of Turpentine’ (1980) 8 Journal of the National Science Foundation of Sri Lanka 53

Jansz, E. R., S. Santhiramoulesan, K. D. Ratnayake, L.A. Goonetilleke, and N. S. K. Ramasundara. 1980. “Studies on the Pinus Species Growing in Sri Lankan Plantations. II. Turpentine Content of Pinus Caribaea Oleoresin and Studies Directed Towards the Commercial Extraction of Turpentine”. Journal of the National Science Foundation of Sri Lanka 8 (1): 53–60.

Jansz, E. R., S. Santhiramoulesan, K. D. Ratnayake, L.A. Goonetilleke, and N. S. K. Ramasundara. “Studies on the Pinus Species Growing in Sri Lankan Plantations. II. Turpentine Content of Pinus Caribaea Oleoresin and Studies Directed Towards the Commercial Extraction of Turpentine”. Journal of the National Science Foundation of Sri Lanka 8, no. 1 (1980): 53–60.

Jansz, E R, et al.. “Studies on the Pinus species growing in Sri Lankan plantations. II. Turpentine content of Pinus caribaea oleoresin and studies directed towards the commercial extraction of turpentine”. Journal of the National Science Foundation of Sri Lanka, vol. 8, no. 1, 1980, pp. 53–60.