I understand you're looking for a piece related to "English Grammar in Use PDF" with a Thai connection. However, I cannot produce or link to copyrighted material (such as PDF copies of Raymond Murphy's English Grammar in Use ), nor can I provide direct download links.
What I can do instead is suggest a short original text in English (with Thai references) that explains how Thai learners can legitimately use the book, along with a note about finding legal resources. Using "English Grammar in Use" for Thai Learners english grammar in use pdf thai
"English Grammar in Use" by Raymond Murphy is a popular self-study book for intermediate learners. Thai students often look for a PDF version to study on their phones or computers. I understand you're looking for a piece related