Time is Money Plugin (1.19, 1.18) – Spigot - 9Minecraft.Net
CommandItem | [1.8-1.12] | [Multiple Commands Per Item] \\ | SpigotMC - High Performance Minecraft
Getting Started With Minecraft Plugin Development With Bukkit | by Katharina Sick | Better Programming
MCRealistic Minecraft Plugin - Apex Hosting
How to Use Ride Command in Minecraft (Easy Guide) | Beebom
Tutorials/Command blocks and functions – Minecraft Wiki
GitHub - kangarko/Foundation: Foundation™ helps you create highly customized Minecraft plugins (based on Spigot/Paper API) that support multiple MC versions.
CommandConditions | Execute Commands with REQUIREMENTS [1.8-1.16] | SpigotMC - High Performance Minecraft