19; የሥራ ባልደረቦቼ እኔም MusicLab ሙከራዎች ለ ተሳታፊዎች ለመመልመል የተጠቀመበት የሰንደቅ ማስታወቂያ ምሳሌ (Salganik, Dodds, and Watts 2006).
Chithunzi cha 4.20: Chitsanzo cha malonda omwe abwenzi anga ndi ine tinkagwiritsa ntchito popempha ophunzira kuti ayambe kufufuza za MusicLab (Salganik, Dodds, and Watts 2006).