Clear Card Manga will now (actually) end in Volume 16 : r/cardcaptorsakura

Cardcaptor Sakura: Happiness Memories Brings the Series to Phones

Spoilers][Rewatch] Cardcaptor Sakura - Episodes 36 to 40 Discussion : r /anime

Cardcaptor Sakura Clear Card Manga Volume 6

俺の「すべて」 / My all — Card Captor Sakura Clear Card chapter 43

Chapter 16 (Clear Card), Cardcaptor Sakura Wiki

Cardcaptor Sakura/Cardcaptors (Nelvana) Episode 14: Sakura, Toya and Cinderella, Sub/Dub Comparison

Cardcaptor Sakura: Clear Card Nendoroid Action Figure Sakura Kinomoto: Tomoeda Junior High Uniform Ver. (re-run) 10 cm

List of Cardcaptor Sakura chapters - Wikipedia

俺の「すべて」 / My all — Cardcaptor Sakura Clear Card Extra Chapter 5