How to add multilocations on Google map using angular 7 ?

How to add multilocations on google map using angular 7 ?

Result points for latitude and longitude from browser :
 
dataLocation values is
 
5.2951916,100.28825170000005,  
30.788892,120.632503,  
13.658933,100.634069,  
10.328074,123.983185,  
31.332119,120.723465  
 
I need to add latitude and longitude above on  google map 
so How to represent this on google map based on datalocation result please  

<agm-map  
[latitude]="lat"  
[longitude]="lng"  
[zoom]="zoom"  
[disableDefaultUI]="false"  
[zoomControl]="false">  
<agm-marker  
*ngFor="let m of markers;"  
[latitude]="m.lat"  
[longitude]="m.long"  
>  
</agm-marker>  
</agm-map>

export class ManagelocationsComponent implements OnInit, AfterViewInit {  
markers=[];  
this.partDetailsService.getLocationData(locationArr).subscribe(res => {  
res.forEach((item, index) => {  
let dataLocation = res[index]['_source']['GPS1'];  
})  
console.log("dataLocation values is" + dataLocation );