Links
[1] https://prflaos.org/library/documents/reports/long-project/%E0%BA%84%E0%BA%A7%E0%BA%B2%E0%BA%A1%E0%BA%84%E0%BA%B7%E0%BA%9A%E0%BA%AB%E0%BA%99%E0%BB%89%E0%BA%B2%E0%BA%82%E0%BA%AD%E0%BA%87%E0%BB%82%E0%BA%84%E0%BA%87%E0%BA%81%E0%BA%B2%E0%BA%99-%E0%BA%84%E0%BA%9B%E0%BA%9E-long
[2] https://prflaos.org/sites/default/files/Library%20Items/files/884/lao//Lao%20Presentation%20for%20Exchange%20experience%20in%20SV%20%20July%202013.pdf
[3] https://prflaos.org/sites/default/files/Library%20Items/files/884//LONG2.jpg