diff --git a/sections/en-us/event-async.md b/sections/en-us/event-async.md
index ba42d3c..81e0458 100644
--- a/sections/en-us/event-async.md
+++ b/sections/en-us/event-async.md
@@ -225,7 +225,7 @@ The writter think there are two kinds of 'asynchronous' in Node.js:  `hard async
    └───────────────────────┘
 ```
 
-To know more about event loop, Timers, nextTick，we recommend the Node.js documentation and this article: [The Node.js Event Loop, Timers, and process.nextTick()](https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/).
+To know more about event loop, Timers, nextTick, we recommend the Node.js documentation, [*The Node.js Event Loop, Timers, and process.nextTick()*](https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/) and [*Tasks, microtasks, queues and schedules*](https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/).
 
 
 ## Paraller/Concurrent
diff --git a/sections/zh-cn/event-async.md b/sections/zh-cn/event-async.md
index 8c55fe7..8e7d1bd 100644
--- a/sections/zh-cn/event-async.md
+++ b/sections/zh-cn/event-async.md
@@ -208,7 +208,7 @@ function sleep(ms) {
    └───────────────────────┘
 ```
 
-关于事件循环, Timers 以及 nextTick 的关系详见官方文档 The Node.js Event Loop, Timers, and process.nextTick(): [英文](https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/)， [论坛中文讨论](https://cnodejs.org/topic/57d68794cb6f605d360105bf)
+关于事件循环, Timers 以及 nextTick 的关系详见官方文档 The Node.js Event Loop, Timers, and process.nextTick(): [英文](https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/)， [论坛中文讨论](https://cnodejs.org/topic/57d68794cb6f605d360105bf) 以及 [Tasks, microtasks, queues and schedules](https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/)
 
 ## 并行/并发