Gusri Akhyar
Department of Mechanical Engineering, Faculty of Engineering, Universitas Lampung, Gedung H, Lt 2, Jalan Prof. Soemantri Brojonegoro No. 1, Bandar Lampung, Indonesia.
Indonesia

Suryadiwansa Harun
Department of Mechanical Engineering, Faculty of Engineering, Universitas Lampung, Gedung H, Lt 2, Jalan Prof. Soemantri Brojonegoro No. 1, Bandar Lampung, Indonesia.
Indonesia

Arinal Hamni
Department of Mechanical Engineering, Faculty of Engineering, Universitas Lampung, Gedung H, Lt 2, Jalan Prof. Soemantri Brojonegoro No. 1, Bandar Lampung, Indonesia.
Indonesia