ระบบล่มในช่วงข้ามปี เพราะผิดแค่เรื่องตัวใหญ่ตัวเล็ก
https://medium.com/kbtg-life/%E0%B8%A3%E0%B8%B0%E0%B8%9A%E0%B8%9A%E0%B8%A5%E0%B9%88%E0%B8%A1%E0%B9%83%E0%B8%99%E0%B8%8A%E0%B9%88%E0%B8%A7%E0%B8%87%E0%B8%82%E0%B9%89%E0%B8%B2%E0%B8%A1%E0%B8%9B%E0%B8%B5-%E0%B9%80%E0%B8%9E%E0%B8%A3%E0%B8%B2%E0%B8%B0%E0%B8%9C%E0%B8%B4%E0%B8%94%E0%B9%81%E0%B8%84%E0%B9%88%E0%B9%80%E0%B8%A3%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B9%83%E0%B8%AB%E0%B8%8D%E0%B9%88%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B9%80%E0%B8%A5%E0%B9%87%E0%B8%81-5ccd63560147