Generating Production Data for a Multi-board Design in Altium Designer | Altium Designer 22 User Manual | Documentation
Multi-Circuit Board Design Rules: Designing PCBs for Interconnected Systems in Altium Designer
Amazon | System-level Multi-board Design with Altium Designer: Get a complete guide to using Altium Designer for multi-board design, from schematic capture to PCB layout (English Edition) [Kindle edition] by Said, Ashraf