T. Sainoi, S. Sdoodee, R. Lacote, and E. Gohet, “Low frequency tapping systems applied to young-tapped trees of Hevea brasiliensis (Willd. ex A. Juss.) Müll. Arg. in Southern Thailand”, Agr. Nat. Resour., vol. 51, no. 4, pp. 268–272, Aug. 2017.