A work is not required to have a copyright statement printed on it or near it in order to be considered copyrighted so do not assume that the work is unprotected simply because you cannot see a notice written anywhere.
Also do not confuse the fact that a work is publicly available with the idea that it is public domain or free for use. Being easy to find on the internet does not affect a work's copyrighted status.
If you would like to use any of these photos, please contact me by email to desiyanti@live.com.
Thank you.