Muhammad Royan, Garuda Metalindo, Jakarta, Indonesia
Arianto Leman Soemowidagdo, Department of Mechanical Engineering Education, Universitas Negeri Yogyakarta, Indonesia
Beni Tri Sasongko, Department of Mechanical Engineering Education, Universitas Negeri Yogyakarta, Indonesia
Deny Aji Pradana, DA Jaya Small Medium Enterprise, Ceper, Klaten, Indonesia

Yudam Alkolid, Department of Industrial Engineering, Universitas Sarjanawiyata Tamansiswa, Indonesia
V. Reza Bayu Kurniawan, Department of Industrial Engineering, Universitas Sarjanawiyata Tamansiswa, Indonesia
Syamsul Ma'arif, Department of Industrial Engineering, Universitas Sarjanawiyata Tamansiswa, Indonesia
Nerda Zura Zaibidi, School of Quantitative Sciences, Universiti Utara Malaysia, Malaysia
Norfaridatul Akmaliah Othman, Department of Technology Management, Universiti Teknikal Malaysia Melaka, Malaysia

Muhamad Abdul Hadi, Department of Civil Engineering, Universitas Islam Indonesia, Indonesia
Muhammad Kennyzyra Bintang, Department of Civil Engineering, Universitas Islam Indonesia, Indonesia
Ad Zulfa Geovani Firdaus, Department of Civil Engineering, Universitas Islam Indonesia, Indonesia
Ghina Hanifah Farza, Department of Civil Engineering, Universitas Islam Indonesia, Indonesia

Beni Tri Sasongko, Department of Mechanical Engineering Education, Universitas Negeri Yogyakarta, Indonesia
Prabuditya Bhisma Wisnu Wardhana, Department of Mechanical Engineering, Politeknik Negeri Banyuwangi, Indonesia
Stephanus Danny Kurniawan, Department of Mechanical Engineering, Vocational College, Universitas Gadjah Mada, Indonesia
Gunawan Budi Susilo, Industrial Engineering Study Program, UIN Sunan Kalijaga Yogyakarta, Indonesia

Mokhammad Khatami, Department of Mechanical Engineering, State Polytechnic of Malang, Indonesia
Zulfa Adi Muslim, Department of Mechanical Engineering, State Polytechnic of Malang, Indonesia
Yuda Junaedi Kurniawan, Department of Mechanical Engineering, State Polytechnic of Malang, Indonesia