muchlis. “ANALYSIS OF CHANGES IN BACKPACK DESIGN CAUSED BY DEVELOPMENTS IN MOUNTAIN CLIMBING EQUIPMENT TECHNOLOGY AND TRAVEL MANAGEMENT TECHNIQUES: ANALYSIS OF CHANGES IN BACKPACK DESIGN CAUSED BY DEVELOPMENTS IN MOUNTAIN CLIMBING EQUIPMENT TECHNOLOGY AND TRAVEL MANAGEMENT TECHNIQUES”. Idealog: Ide Dan Dialog Desain Indonesia, vol. 10, no. 1, Apr. 2025, doi:10.25124/idealog.v10i1.8354.