COMET • Vol. 18, No. 07 – 10 December 2017

COMET • Vol. 19, No. 01 – 15 February 2018

COMET • Vol. 19, No. 02 – 18 March 2018

COMET • Vol. 19, No. 03 – 5 June 2018

COMET • Vol. 19, No. 04 – 30 September 2018

COMET • Vol. 19, No. 05 – 5 December 2018

COMET • Vol. 20, No. 01 – 14 March 2019

COMET • Vol. 20, No. 02 – 1 June 2019

COMET • Vol. 20, No. 03 – 8 October 2019

COMET • Vol. 21, No. 01 – 21 January 2020