Here is a pdf embed of the Eastern Secwepemctsín 1 booklet. This will not work on phones or tablets. You will be able to download it to your phone as a file. The issue is that you will not have the audio on your phone to listen to it. In order to find the audio files listed for the lessons, you just need to scroll down below the pdf embed.
In order to scroll through the pdf, you will need to click on the embedded pdf. If you want to scroll through the webpage and not in the embedded pdf, you need to click off the pdf and somewhere in the web page. Then to scroll through the pdf again, you only need to click in the pdf and you can scroll through the book.
Lesson 1 audio
Lesson 2 audio