CERTIFICATE
Alexander Aur Environmental Science, Doctoral Program, Soegijapranata Catholic University, Semarang; Philosophy Department, Faculty of Tourism and Hospitality, Pelita Harapan University, Karawaci, Indonesia
Y. Budi Widianarko Food Technology Department, Faculty of Agricultural Technology, Soegijapranata Catholic University, Semarang, Indonesia
Trihoni Nalesti Dewi Law Department, Faculty of Law and Communication, Soegijapranata Catholic University, Semarang Indonesia
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