There are three primary ways to communicate emotions (particularly anger); they fall into the categories of “passive,” “aggressive,” or “assertive.”  Learning to use assertive communication can help you communicate with others in a healthy way.  Passive communication involves becoming progressively angry about something without actually dealing with the problem or confronting the situation in any way.  Passive behavior can often lead to secret revenge or other negative behaviors (known as passive-aggressive behavior).  Aggressive communication involves becoming so angry that you have an outburst that likely seems like an overreaction to the situation from the outside. Aggressive outbursts can also be paired with violence. Assertive communication is a healthy, respectful way to address and confront the person or situation that is causing you to become angry. Part of assertive communication is acknowledging that your needs as well as the needs of the other person (or people) involved are important. This takes the focus off of you and shows that you are appreciative of the needs of others. For example, if you are about to get mad at your husband because he did not pick up dinner on his way home, you could start your conversation by saying, “I know that you have a lot of different responsibilities that weigh on you” (acknowledging his needs). Then you could say, “I also have a lot going on, and when you forget to pick up dinner, it messes up the schedule that I had planned.” Using “please” and “thank you” can go a long way towards seeming respectful of another. Treat the other party with respect, acknowledging that he has a side to the story as well. For example, instead of immediately getting mad at your husband for not picking up dinner, you might say, “do you have an alternate plan for dinner?” He may have come up with another idea.  Even if he did just forget, asking with curiosity about an alternate plan is kinder than immediately demanding, “where is the dinner you said you would pick up?!” when he walks in...

TL;DR in Indonesian:
Pahami perbedaan berbagai pola komunikasi. Tekankan bahwa kebutuhan kedua belah pihak sama pentingnya. Hargai lawan bicara. Sampaikan keinginan Anda secara lugas dan spesifik. Ekspresikan perasaan Anda. Cari solusi yang tepat.