Unit PL1
Publication date:
01 March 2012
Last updated:
13 November 2023
These updates are Learning Solutions updates for study purposes.
2024 edition
To view a list of the main areas of change in the 2024 edition, please click here.
2023 edition
To view a list of the main areas of change in the 2023 edition, please click here.
Study text updates:
PL1_2023_web_update_1_14_11-2022