<https://www.doubtnut.com/qa-hindi/log4x-1log2x-3-ke-hlon-kii-snkhyaa-hai-334964836>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.doubtnut.com/qa-hindi/log4x-1log2x-3-ke-hlon-kii-snkhyaa-hai-334964836>