Introduction to morphology
EBOOK INTRODUCTION TO MORPHOLOGY
and this one: https://tinyurl.com/pakfaymorphology2022
Pak Faizal's E-book of English Syntax

INTROD OF ENGLISH SYNTAX.pdf - Google Drive
or choose this one:
a new style of reading Pak Faizal's e-book: https://online.pubhtml5.com/zhhy/tlhu/