This book is brought from the following link:
https://archive.org/details/pirkderabbieli00frieuoft/page/66/mode/2up

There is a possibility to download the book in PDF as well as other options.

It is also possible to read this book in Hebrew and English in the following website:
https://www.sefaria.org/Pirkei_DeRabbi_Eliezer.1.1?lang=bi