I read the book in the light of criticism

Refer to the instruction manual if you need to fix the refrigerator

Which dictionary did you refer to

This reference book is of benefit to you all

In regard to the internship system in the United States I availed myself of part of Miyumi Tanaka's work "Making doctors in Harvard" (Igaku-Shoin Ltd.) as a reference

I think it might be useful if you could add how to output the diphthongs (with small ya/yu/yo) and geminate consonants (with small tsu)

A Ltd.'s annual report is worth having a look at