This document, declassified in January 2015, contains a 1989 diplomatic memorandum from the Canadian Embassy in Beijing. It describes the circumstances surrounding the June 4 massacre as they were known to officials at the Canadian embassy.
The documents, declassified by the National Library and Archives of Canada, show the Canadian government's concern about the invasion of the embassy by Chinese troops. The documents also describe the crackdown in Beijing and how the troops killed citizens.
This book is a biography of Lin Zhao written by mainland writer Zhao Rui and published by Taiwan's Xiuwei Information Publishing House in 2008. The book describes Lin Zhao's life and family background in detail. The "Appendix" contains the recollections of several people involved.Purchase link: https://www.books.com.tw/products/0010431680.