1. P. S. Kumar and G. J. Joshiba, “Environmental and Chemical Issues in Tanneries and Their Mitigation Measures,” In Leather and Footwear Sustainability (Springer, Singapore, 2020), pp. 1–10.
2. S. Rahayu, A. Y. Ridwan, and M. Saputra, Proc. Int. Conf. Electr. Eng. Informatics 2019-July, 602–7 (2019).
3. M. F. Novar, A. Yanuar Ridwan, and B. Santosa, Proceeding 2018 12th Int. Conf. Telecommun. Syst. Serv. Appl. TSSA 2018 (IEEE, 2018), pp. 1–6.
4. R. Y. Kuswandi, A. Yanuar Ridwan, and R. M. El Hadi, Proceeding 2018 12th Int. Conf. Telecommun. Syst. Serv. Appl. TSSA 2018 (IEEE, 2018), pp. 1–5.
5. Development of sustainable procurement monitoring system performance based on Supply Chain Reference Operation (SCOR) and Analytical Hierarchy Process (AHP) on leather tanning industry