opticsjournal.net Rank 17.3K. Estimated value 128,724$myphysicslab.com Rank 476.5K. Estimated value 4,548$aps.org Rank 2.5K. Estimated value 903,708$lawebdefisica.com Rank 584.7K. Estimated value 3,696$winnerscience.com Rank 763.2K. Estimated value 2,820$rigaku.com Rank 520.5K. Estimated value 4,152$easy-physic.ru Rank 349.3K. Estimated value 6,216$maktabkhooneh.org Rank 5.3K. Estimated value 421,296$masteringphysics.com Rank 39.8K. Estimated value 55,488$epj.org Rank 866.1K. Estimated value 2,484$