D. Dumasari, W. Darmawan, A. Iqbal, B. Dharmawan, and I. Santosa, “Development of Production Creativity among Craftsmen by Identifying Techniques for Characterizing Coconut Waste”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 9, no. 2, pp. 717–723, Apr. 2019.