To find "diketahui" (known/reliable) image sites and scholarly papers on the topic, you should focus on platforms that provide high-quality, often royalty-free, or academic-grade visuals. Top Reliable Image Sites
: An excellent source for educational and historical images, though users must check specific Creative Commons licenses. Diketahui - Image Sites
: The successor to Creative Commons Search, allowing you to filter by specific usage rights. Helpful Academic Papers Diketahui - Image Sites