Link down tài liệu đấu thầu
https://drive.google.com/file/d/12ho4njk_0MQB2f2LMrzl08yIKSB7IPUI/view?usp=sharing
https://drive.google.com/file/d/16Fv2jrGNuqGtHbObFHhawO_4v4JWmK31/view?usp=sharing
https://drive.google.com/file/d/1x2xojnXP8bBVKrnAFo4jTXV50sSXASeb/view?usp=sharing
https://drive.google.com/file/d/1XVtk_l5SYldhUX0WOqGlJ0nLveBs1in3/view?usp=sharing