Vietnamese document link:
HSK 1
https://chinese.com.vn/bo-giao-trinh-chuan-hsk-standard-course-hsk1-den-hsk6-pdfmp3.html

HSK2
https://drive.google.com/file/d/1w1qJ5fG_1M3SCCTac14jTUbs3wVzn00W/view

HSK3
https://drive.google.com/file/d/1t-TDfOnSK7D-V-rZ8FNjxIrkkSdTrPeA/view

HSK 4
https://drive.google.com/file/d/1lc5FwRKaFUSjkjGE-WwcS5Ch_caXC1Qw/view

HSK5
https://drive.google.com/file/d/1oE3Yx7xkCp4E7hjhWBBfs4fjxfdiyKFM/view

HSK 5 Part 1:
https://drive.google.com/file/d/1oE3Yx7xkCp4E7hjhWBBfs4fjxfdiyKFM/view
HSK 5 Part 2:
https://drive.google.com/file/d/1Cq_EqSGqV3p893pKUFzwxcfk9e4oQpFO/view

GIÁO TRÌNH LUYỆN THI HSK 5

1. Quyển thượng

 2. Quyển hạ