References

Foundation, Raspberry Pi. “GCSE Computer Science | KS4 | Programming Part 2 - Selection — Raspberrypi.org.” https://www.raspberrypi.org/curriculum/key-stage-4/programming-part-2-selection.

RaspberryPi-Foundation. “GCSE Computer Science | KS4 | Programming Part 1 - Sequence — Raspberrypi.org.” https://www.raspberrypi.org/curriculum/key-stage-4/programming-part-1-sequence.

———. “GCSE Computer Science | KS4 | Programming Part 2 - Selection/Randomization — Raspberrypi.org.” https://www.raspberrypi.org/curriculum/key-stage-4/programming-part-2-selection/randomisation.