B. D. Argo, W. A. Nugroho, Y. B. Pristya, and U. Ubaidillah, “Design of Thermal Conductivity Apparatus Base on Transient-state Radial Cylinder Method”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 3, no. 2, pp. 179–183, Apr. 2013.