muchlis. 2025. “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 10 (1). https://journals.telkomuniversity.ac.id/idealog/article/view/8354.